612764836 has 12 divisors (see below), whose sum is σ = 1076942412. Its totient is φ = 305067008.

The previous prime is 612764797. The next prime is 612764849. The reversal of 612764836 is 638467216.

It can be written as a sum of positive squares in 2 ways, for example, as 208513600 + 404251236 = 14440^2 + 20106^2 .

It is a junction number, because it is equal to n+sod(n) for n = 612764792 and 612764801.

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, 327805 + ... + 329668.

It is an arithmetic number, because the mean of its divisors is an integer number (89745201).

Almost surely, 2^612764836 is an apocalyptic number.

It is an amenable number.

612764836 is a deficient number, since it is larger than the sum of its proper divisors (464177576).

612764836 is a wasteful number, since it uses less digits than its factorization.

612764836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657710 (or 657708 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 612764836 is about 24754.0872584711. The cubic root of 612764836 is about 849.3720095035.

The spelling of 612764836 in words is "six hundred twelve million, seven hundred sixty-four thousand, eight hundred thirty-six".