612972936 has 24 divisors (see below), whose sum is σ = 1660135230. Its totient is φ = 204324288.

The previous prime is 612972917. The next prime is 612972949. The reversal of 612972936 is 639279216.

It is a happy number.

612972936 is a `hidden beast` number, since 612 + 9 + 7 + 29 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 320768100 + 292204836 = 17910^2 + 17094^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 612972891 and 612972900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4256685 + ... + 4256828.

Almost surely, 2^612972936 is an apocalyptic number.

It is an amenable number.

612972936 is an abundant number, since it is smaller than the sum of its proper divisors (1047162294).

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

612972936 is a wasteful number, since it uses less digits than its factorization.

612972936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8513525 (or 8513518 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 612972936 is about 24758.2902479149. The cubic root of 612972936 is about 849.4681498712.

The spelling of 612972936 in words is "six hundred twelve million, nine hundred seventy-two thousand, nine hundred thirty-six".