712318212 has 30 divisors (see below), whose sum is σ = 1862141358. Its totient is φ = 237439296.

The previous prime is 712318193. The next prime is 712318223. The reversal of 712318212 is 212813217.

It can be written as a sum of positive squares in only one way, i.e., 628705476 + 83612736 = 25074^2 + 9144^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

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 9 ways as a sum of consecutive naturals, for example, 1098933 + ... + 1099580.

Almost surely, 2^712318212 is an apocalyptic number.

It is an amenable number.

712318212 is an abundant number, since it is smaller than the sum of its proper divisors (1149823146).

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

712318212 is a wasteful number, since it uses less digits than its factorization.

712318212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198529 (or 2198518 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 712318212 is about 26689.2902116186. The cubic root of 712318212 is about 893.0820269693.

The spelling of 712318212 in words is "seven hundred twelve million, three hundred eighteen thousand, two hundred twelve".