672738860 has 12 divisors (see below), whose sum is σ = 1412751648. Its totient is φ = 269095536.

The previous prime is 672738823. The next prime is 672738883. The reversal of 672738860 is 68837276.

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, 16818452 + ... + 16818491.

It is an arithmetic number, because the mean of its divisors is an integer number (117729304).

Almost surely, 2^672738860 is an apocalyptic number.

It is an amenable number.

672738860 is an abundant number, since it is smaller than the sum of its proper divisors (740012788).

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

672738860 is a wasteful number, since it uses less digits than its factorization.

672738860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33636952 (or 33636950 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 47.

The square root of 672738860 is about 25937.2099501855. The cubic root of 672738860 is about 876.2247274123.

The spelling of 672738860 in words is "six hundred seventy-two million, seven hundred thirty-eight thousand, eight hundred sixty".