712099881 has 6 divisors (see below), whose sum is σ = 1028588730. Its totient is φ = 474733248.

The previous prime is 712099847. The next prime is 712099933. The reversal of 712099881 is 188990217.

It can be written as a sum of positive squares in only one way, i.e., 696960000 + 15139881 = 26400^2 + 3891^2 .

It is not a de Polignac number, because 712099881 - 2¹⁴ = 712083497 is a prime.

It is a super-2 number, since 2×712099881² = 1014172481040428322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (712099831) 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 5 ways as a sum of consecutive naturals, for example, 39561096 + ... + 39561113.

It is an arithmetic number, because the mean of its divisors is an integer number (171431455).

Almost surely, 2^712099881 is an apocalyptic number.

It is an amenable number.

712099881 is a deficient number, since it is larger than the sum of its proper divisors (316488849).

712099881 is a wasteful number, since it uses less digits than its factorization.

712099881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79122215 (or 79122212 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 712099881 is about 26685.1996619849. The cubic root of 712099881 is about 892.9907721463.

The spelling of 712099881 in words is "seven hundred twelve million, ninety-nine thousand, eight hundred eighty-one".