672065728 has 14 divisors (see below), whose sum is σ = 1333630556. Its totient is φ = 336032832.

The previous prime is 672065711. The next prime is 672065747. The reversal of 672065728 is 827560276.

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 as a sum of consecutive naturals, namely, 5250450 + ... + 5250577.

Almost surely, 2^672065728 is an apocalyptic number.

It is an amenable number.

672065728 is a deficient number, since it is larger than the sum of its proper divisors (661564828).

672065728 is a wasteful number, since it uses less digits than its factorization.

672065728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10501039 (or 10501029 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The square root of 672065728 is about 25924.2305189566. The cubic root of 672065728 is about 875.9323842920.

The spelling of 672065728 in words is "six hundred seventy-two million, sixty-five thousand, seven hundred twenty-eight".