616972464 has 50 divisors (see below), whose sum is σ = 1785701060. Its totient is φ = 205657056.

The previous prime is 616972457. The next prime is 616972481. The reversal of 616972464 is 464279616.

616972464 is a `hidden beast` number, since 61 + 69 + 72 + 464 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 236734 + ... + 239325.

Almost surely, 2^616972464 is an apocalyptic number.

It is an amenable number.

616972464 is an abundant number, since it is smaller than the sum of its proper divisors (1168728596).

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

616972464 is a wasteful number, since it uses less digits than its factorization.

616972464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476079 (or 476064 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 616972464 is about 24838.9304117549. The cubic root of 616972464 is about 851.3116837057.

The spelling of 616972464 in words is "six hundred sixteen million, nine hundred seventy-two thousand, four hundred sixty-four".