61609612 has 6 divisors (see below), whose sum is σ = 107816828. Its totient is φ = 30804804.

The previous prime is 61609589. The next prime is 61609619. The reversal of 61609612 is 21690616.

It is not an unprimeable number, because it can be changed into a prime (61609619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7701198 + ... + 7701205.

Almost surely, 2^61609612 is an apocalyptic number.

It is an amenable number.

61609612 is a deficient number, since it is larger than the sum of its proper divisors (46207216).

61609612 is a wasteful number, since it uses less digits than its factorization.

61609612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15402407 (or 15402405 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 61609612 is about 7849.1790653545. The cubic root of 61609612 is about 394.9567051837.

The spelling of 61609612 in words is "sixty-one million, six hundred nine thousand, six hundred twelve".