86890311 has 6 divisors (see below), whose sum is σ = 125508240. Its totient is φ = 57926868.

The previous prime is 86890289. The next prime is 86890327. The reversal of 86890311 is 11309868.

It is not a de Polignac number, because 86890311 - 2⁷ = 86890183 is a prime.

It is a super-2 number, since 2×86890311² = 15099852291353442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86890361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4827231 + ... + 4827248.

It is an arithmetic number, because the mean of its divisors is an integer number (20918040).

Almost surely, 2^86890311 is an apocalyptic number.

86890311 is a deficient number, since it is larger than the sum of its proper divisors (38617929).

86890311 is a wasteful number, since it uses less digits than its factorization.

86890311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9654485 (or 9654482 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 86890311 is about 9321.4972509785. The cubic root of 86890311 is about 442.9184627096.

The spelling of 86890311 in words is "eighty-six million, eight hundred ninety thousand, three hundred eleven".