86489790 has 16 divisors (see below), whose sum is σ = 207575568. Its totient is φ = 23063936.

The previous prime is 86489773. The next prime is 86489927. The reversal of 86489790 is 9798468.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1441467 + ... + 1441526.

It is an arithmetic number, because the mean of its divisors is an integer number (12973473).

Almost surely, 2^86489790 is an apocalyptic number.

86489790 is an abundant number, since it is smaller than the sum of its proper divisors (121085778).

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

86489790 is a wasteful number, since it uses less digits than its factorization.

86489790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883003.

The product of its (nonzero) digits is 870912, while the sum is 51.

The square root of 86489790 is about 9299.9887096706. The cubic root of 86489790 is about 442.2368699595.

The spelling of 86489790 in words is "eighty-six million, four hundred eighty-nine thousand, seven hundred ninety".