61697104 has 80 divisors (see below), whose sum is σ = 146022400. Its totient is φ = 24665472.

The previous prime is 61697101. The next prime is 61697107. The reversal of 61697104 is 40179616.

61697104 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61697101) and next prime (61697107).

It is a self number, because there is not a number n which added to its sum of digits gives 61697104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61697101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167929 + ... + 168295.

It is an arithmetic number, because the mean of its divisors is an integer number (1825280).

Almost surely, 2^61697104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61697104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73011200).

61697104 is an abundant number, since it is smaller than the sum of its proper divisors (84325296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61697104 is a wasteful number, since it uses less digits than its factorization.

61697104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 61697104 is about 7854.7504097839. The cubic root of 61697104 is about 395.1435764978.

The spelling of 61697104 in words is "sixty-one million, six hundred ninety-seven thousand, one hundred four".