712323218 has 16 divisors (see below), whose sum is σ = 1074816864. Its totient is φ = 354056640.

The previous prime is 712323151. The next prime is 712323247. The reversal of 712323218 is 812323217.

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 7 ways as a sum of consecutive naturals, for example, 397721 + ... + 399507.

It is an arithmetic number, because the mean of its divisors is an integer number (67176054).

Almost surely, 2^712323218 is an apocalyptic number.

712323218 is a deficient number, since it is larger than the sum of its proper divisors (362493646).

712323218 is a wasteful number, since it uses less digits than its factorization.

712323218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857.

The product of its digits is 4032, while the sum is 29.

The square root of 712323218 is about 26689.3839943900. The cubic root of 712323218 is about 893.0841190859.

Subtracting 712323218 from its reverse (812323217), we obtain a palindrome (99999999).

The spelling of 712323218 in words is "seven hundred twelve million, three hundred twenty-three thousand, two hundred eighteen".