612856992 has 48 divisors (see below), whose sum is σ = 1755002592. Its totient is φ = 185713920.

The previous prime is 612856921. The next prime is 612856999. The reversal of 612856992 is 299658216.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (612856999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289123 + ... + 291234.

It is an arithmetic number, because the mean of its divisors is an integer number (36562554).

Almost surely, 2^612856992 is an apocalyptic number.

It is an amenable number.

612856992 is an abundant number, since it is smaller than the sum of its proper divisors (1142145600).

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

612856992 is a wasteful number, since it uses less digits than its factorization.

612856992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580381 (or 580373 counting only the distinct ones).

The product of its digits is 466560, while the sum is 48.

The square root of 612856992 is about 24755.9486184634. The cubic root of 612856992 is about 849.4145874489.

The spelling of 612856992 in words is "six hundred twelve million, eight hundred fifty-six thousand, nine hundred ninety-two".