713521871 has 4 divisors (see below), whose sum is σ = 713576232. Its totient is φ = 713467512.

The previous prime is 713521859. The next prime is 713521931. The reversal of 713521871 is 178125317.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-713521871 is a prime.

It is a super-2 number, since 2×713521871² = 1018226920790681282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (713521271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6056 + ... + 38258.

It is an arithmetic number, because the mean of its divisors is an integer number (178394058).

Almost surely, 2^713521871 is an apocalyptic number.

713521871 is a deficient number, since it is larger than the sum of its proper divisors (54361).

713521871 is a wasteful number, since it uses less digits than its factorization.

713521871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54360.

The product of its digits is 11760, while the sum is 35.

The square root of 713521871 is about 26711.8301694212. The cubic root of 713521871 is about 893.5847804133.

The spelling of 713521871 in words is "seven hundred thirteen million, five hundred twenty-one thousand, eight hundred seventy-one".