86303391 has 16 divisors (see below), whose sum is σ = 120207360. Its totient is φ = 55006560.

The previous prime is 86303387. The next prime is 86303417. The reversal of 86303391 is 19330368.

It is not a de Polignac number, because 86303391 - 2² = 86303387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86303381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4146 + ... + 13776.

It is an arithmetic number, because the mean of its divisors is an integer number (7512960).

Almost surely, 2^86303391 is an apocalyptic number.

86303391 is a deficient number, since it is larger than the sum of its proper divisors (33903969).

86303391 is a wasteful number, since it uses less digits than its factorization.

86303391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9766.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 86303391 is about 9289.9618406105. The cubic root of 86303391 is about 441.9189449588.

It can be divided in two parts, 8630 and 3391, that added together give a palindrome (12021).

The spelling of 86303391 in words is "eighty-six million, three hundred three thousand, three hundred ninety-one".