61613370 has 96 divisors (see below), whose sum is σ = 197188992. Its totient is φ = 12998016.

The previous prime is 61613369. The next prime is 61613407. The reversal of 61613370 is 7331616.

61613370 is a `hidden beast` number, since 616 + 13 + 37 + 0 = 666.

61613370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 4429 + ... + 11951.

It is an arithmetic number, because the mean of its divisors is an integer number (2054052).

Almost surely, 2^61613370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61613370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98594496).

61613370 is an abundant number, since it is smaller than the sum of its proper divisors (135575622).

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

61613370 is a wasteful number, since it uses less digits than its factorization.

61613370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7556 (or 7553 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 61613370 is about 7849.4184497961. The cubic root of 61613370 is about 394.9647354086.

Adding to 61613370 its reverse (7331616), we get a palindrome (68944986).

The spelling of 61613370 in words is "sixty-one million, six hundred thirteen thousand, three hundred seventy".