86424913 has 4 divisors (see below), whose sum is σ = 86456560. Its totient is φ = 86393268.

The previous prime is 86424907. The next prime is 86424937. The reversal of 86424913 is 31942468.

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 86424913 - 2¹³ = 86416721 is a prime.

It is the 9297-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86424953) by changing a digit.

It is a nontrivial repunit in base 9296.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11295 + ... + 17332.

It is an arithmetic number, because the mean of its divisors is an integer number (21614140).

Almost surely, 2^86424913 is an apocalyptic number.

It is an amenable number.

86424913 is a deficient number, since it is larger than the sum of its proper divisors (31647).

86424913 is a wasteful number, since it uses less digits than its factorization.

86424913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31646.

The product of its digits is 41472, while the sum is 37.

The square root of 86424913 is about 9296.5000403378. The cubic root of 86424913 is about 442.1262666223.

The spelling of 86424913 in words is "eighty-six million, four hundred twenty-four thousand, nine hundred thirteen".