86320390 has 64 divisors (see below), whose sum is σ = 179081280. Its totient is φ = 29675520.

The previous prime is 86320387. The next prime is 86320427. The reversal of 86320390 is 9302368.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307050 + ... + 307330.

It is an arithmetic number, because the mean of its divisors is an integer number (2798145).

Almost surely, 2^86320390 is an apocalyptic number.

86320390 is an abundant number, since it is smaller than the sum of its proper divisors (92760890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86320390 is a wasteful number, since it uses less digits than its factorization.

86320390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 86320390 is about 9290.8767078247. The cubic root of 86320390 is about 441.9479576735.

The spelling of 86320390 in words is "eighty-six million, three hundred twenty thousand, three hundred ninety".