61609692 has 24 divisors (see below), whose sum is σ = 144199552. Its totient is φ = 20473200.

The previous prime is 61609687. The next prime is 61609703. The reversal of 61609692 is 29690616.

It is a self number, because there is not a number n which added to its sum of digits gives 61609692.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3784 + ... + 11727.

Almost surely, 2^61609692 is an apocalyptic number.

It is an amenable number.

61609692 is an abundant number, since it is smaller than the sum of its proper divisors (82589860).

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

61609692 is a wasteful number, since it uses less digits than its factorization.

61609692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15849 (or 15847 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 61609692 is about 7849.1841614272. The cubic root of 61609692 is about 394.9568761339.

The spelling of 61609692 in words is "sixty-one million, six hundred nine thousand, six hundred ninety-two".