61688341 has 12 divisors (see below), whose sum is σ = 73023916. Its totient is φ = 51765120.

The previous prime is 61688329. The next prime is 61688353. The reversal of 61688341 is 14388616.

61688341 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 (61688329) and next prime (61688353).

It can be written as a sum of positive squares in 2 ways, for example, as 8820900 + 52867441 = 2970^2 + 7271^2 .

It is a de Polignac number, because none of the positive numbers 2^k-61688341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61688341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61688321) 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 11 ways as a sum of consecutive naturals, for example, 18036 + ... + 21181.

Almost surely, 2^61688341 is an apocalyptic number.

It is an amenable number.

61688341 is a deficient number, since it is larger than the sum of its proper divisors (11335575).

61688341 is a wasteful number, since it uses less digits than its factorization.

61688341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39252 (or 39241 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 61688341 is about 7854.1925746699. The cubic root of 61688341 is about 395.1248678557.

The spelling of 61688341 in words is "sixty-one million, six hundred eighty-eight thousand, three hundred forty-one".