712267521 has 32 divisors (see below), whose sum is σ = 1131114240. Its totient is φ = 390061056.

The previous prime is 712267499. The next prime is 712267541. The reversal of 712267521 is 125762217.

It is not a de Polignac number, because 712267521 - 2⁵ = 712267489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (712267541) 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 31 ways as a sum of consecutive naturals, for example, 79165 + ... + 87701.

It is an arithmetic number, because the mean of its divisors is an integer number (35347320).

Almost surely, 2^712267521 is an apocalyptic number.

It is an amenable number.

712267521 is a deficient number, since it is larger than the sum of its proper divisors (418846719).

712267521 is a wasteful number, since it uses less digits than its factorization.

712267521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8713.

The product of its digits is 11760, while the sum is 33.

The square root of 712267521 is about 26688.3405441402. The cubic root of 712267521 is about 893.0608415430.

The spelling of 712267521 in words is "seven hundred twelve million, two hundred sixty-seven thousand, five hundred twenty-one".