712437881 has 2 divisors, whose sum is σ = 712437882. Its totient is φ = 712437880.

The previous prime is 712437863. The next prime is 712437893. The reversal of 712437881 is 188734217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412455481 + 299982400 = 20309^2 + 17320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-712437881 is a prime.

It is a super-2 number, since 2×712437881² = 1015135468567540322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (712437841) by changing a digit.

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 as a sum of consecutive naturals, namely, 356218940 + 356218941.

It is an arithmetic number, because the mean of its divisors is an integer number (356218941).

Almost surely, 2^712437881 is an apocalyptic number.

It is an amenable number.

712437881 is a deficient number, since it is larger than the sum of its proper divisors (1).

712437881 is an equidigital number, since it uses as much as digits as its factorization.

712437881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 41.

The square root of 712437881 is about 26691.5320092347. The cubic root of 712437881 is about 893.1320365703.

The spelling of 712437881 in words is "seven hundred twelve million, four hundred thirty-seven thousand, eight hundred eighty-one".