712628838 has 12 divisors (see below), whose sum is σ = 1544029188. Its totient is φ = 237542940.

The previous prime is 712628827. The next prime is 712628857. The reversal of 712628838 is 838826217.

712628838 is a `hidden beast` number, since 7 + 12 + 628 + 8 + 3 + 8 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 712628793 and 712628802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19795228 + ... + 19795263.

It is an arithmetic number, because the mean of its divisors is an integer number (128669099).

Almost surely, 2^712628838 is an apocalyptic number.

712628838 is an abundant number, since it is smaller than the sum of its proper divisors (831400350).

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

712628838 is a wasteful number, since it uses less digits than its factorization.

712628838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39590499 (or 39590496 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 712628838 is about 26695.1088778450. The cubic root of 712628838 is about 893.2118257859.

The spelling of 712628838 in words is "seven hundred twelve million, six hundred twenty-eight thousand, eight hundred thirty-eight".