712663128 has 48 divisors (see below), whose sum is σ = 1932735480. Its totient is φ = 237233664.

The previous prime is 712663117. The next prime is 712663129. The reversal of 712663128 is 821366217.

712663128 is a `hidden beast` number, since 7 + 12 + 6 + 631 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 712663092 and 712663101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712663129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50376 + ... + 62952.

Almost surely, 2^712663128 is an apocalyptic number.

It is an amenable number.

712663128 is an abundant number, since it is smaller than the sum of its proper divisors (1220072352).

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

712663128 is a wasteful number, since it uses less digits than its factorization.

712663128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13376 (or 13369 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 712663128 is about 26695.7511226038. The cubic root of 712663128 is about 893.2261519636.

The spelling of 712663128 in words is "seven hundred twelve million, six hundred sixty-three thousand, one hundred twenty-eight".