612620872 has 16 divisors (see below), whose sum is σ = 1149037740. Its totient is φ = 306210816.

The previous prime is 612620851. The next prime is 612620881. The reversal of 612620872 is 278026216.

It can be written as a sum of positive squares in 2 ways, for example, as 584382276 + 28238596 = 24174^2 + 5314^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18088 + ... + 39400.

Almost surely, 2^612620872 is an apocalyptic number.

It is an amenable number.

612620872 is a deficient number, since it is larger than the sum of its proper divisors (536416868).

612620872 is a wasteful number, since it uses less digits than its factorization.

612620872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24912 (or 24908 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 612620872 is about 24751.1792042319. The cubic root of 612620872 is about 849.3054866646.

The spelling of 612620872 in words is "six hundred twelve million, six hundred twenty thousand, eight hundred seventy-two".