86215713 has 4 divisors (see below), whose sum is σ = 114954288. Its totient is φ = 57477140.

The previous prime is 86215699. The next prime is 86215733. The reversal of 86215713 is 31751268.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86215713 - 2¹² = 86211617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86215733) 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, 14369283 + ... + 14369288.

It is an arithmetic number, because the mean of its divisors is an integer number (28738572).

Almost surely, 2^86215713 is an apocalyptic number.

It is an amenable number.

86215713 is a deficient number, since it is larger than the sum of its proper divisors (28738575).

86215713 is a wasteful number, since it uses less digits than its factorization.

86215713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28738574.

The product of its digits is 10080, while the sum is 33.

The square root of 86215713 is about 9285.2416769840. The cubic root of 86215713 is about 441.7692416951.

The spelling of 86215713 in words is "eighty-six million, two hundred fifteen thousand, seven hundred thirteen".