86626813 has 8 divisors (see below), whose sum is σ = 106617728. Its totient is φ = 68539824.

The previous prime is 86626801. The next prime is 86626823. The reversal of 86626813 is 31862668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86626813 - 2²⁵ = 53072381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86626823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475881 + ... + 476062.

It is an arithmetic number, because the mean of its divisors is an integer number (13327216).

Almost surely, 2^86626813 is an apocalyptic number.

It is an amenable number.

86626813 is a deficient number, since it is larger than the sum of its proper divisors (19990915).

86626813 is a wasteful number, since it uses less digits than its factorization.

86626813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951963.

The product of its digits is 82944, while the sum is 40.

The square root of 86626813 is about 9307.3526311191. The cubic root of 86626813 is about 442.4702873002.

The spelling of 86626813 in words is "eighty-six million, six hundred twenty-six thousand, eight hundred thirteen".