712605906 has 24 divisors (see below), whose sum is σ = 1625242320. Its totient is φ = 225033336.

The previous prime is 712605877. The next prime is 712605919. The reversal of 712605906 is 609506217.

712605906 is a `hidden beast` number, since 7 + 1 + 2 + 60 + 590 + 6 = 666.

It is an unprimeable number.

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, 1041480 + ... + 1042163.

It is an arithmetic number, because the mean of its divisors is an integer number (67718430).

Almost surely, 2^712605906 is an apocalyptic number.

712605906 is an abundant number, since it is smaller than the sum of its proper divisors (912636414).

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

712605906 is a wasteful number, since it uses less digits than its factorization.

712605906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083670 (or 2083667 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 712605906 is about 26694.6793575049. The cubic root of 712605906 is about 893.2022446630.

The spelling of 712605906 in words is "seven hundred twelve million, six hundred five thousand, nine hundred six".