612999872 has 28 divisors (see below), whose sum is σ = 1287978120. Its totient is φ = 288470016.

The previous prime is 612999853. The next prime is 612999929. The reversal of 612999872 is 278999216.

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, 280622 + ... + 282797.

Almost surely, 2^612999872 is an apocalyptic number.

It is an amenable number.

612999872 is an abundant number, since it is smaller than the sum of its proper divisors (674978248).

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

612999872 is a wasteful number, since it uses less digits than its factorization.

612999872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563448 (or 563438 counting only the distinct ones).

The product of its digits is 979776, while the sum is 53.

The square root of 612999872 is about 24758.8342213441. The cubic root of 612999872 is about 849.4805924754.

The spelling of 612999872 in words is "six hundred twelve million, nine hundred ninety-nine thousand, eight hundred seventy-two".