86807490 has 64 divisors (see below), whose sum is σ = 259752960. Its totient is φ = 18037440.

The previous prime is 86807489. The next prime is 86807503. The reversal of 86807490 is 9470868.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon 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, 16480 + ... + 21099.

It is an arithmetic number, because the mean of its divisors is an integer number (4058640).

Almost surely, 2^86807490 is an apocalyptic number.

86807490 is an abundant number, since it is smaller than the sum of its proper divisors (172945470).

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

86807490 is a wasteful number, since it uses less digits than its factorization.

86807490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37607.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 86807490 is about 9317.0537188534. The cubic root of 86807490 is about 442.7776928480. Note that the first 3 decimals are identical.

The spelling of 86807490 in words is "eighty-six million, eight hundred seven thousand, four hundred ninety".