86945590 has 16 divisors (see below), whose sum is σ = 157889088. Its totient is φ = 34470016.

The previous prime is 86945569. The next prime is 86945609. The reversal of 86945590 is 9554968.

It is a self number, because there is not a number n which added to its sum of digits gives 86945590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37342 + ... + 39601.

It is an arithmetic number, because the mean of its divisors is an integer number (9868068).

Almost surely, 2^86945590 is an apocalyptic number.

86945590 is a deficient number, since it is larger than the sum of its proper divisors (70943498).

86945590 is a wasteful number, since it uses less digits than its factorization.

86945590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77063.

The product of its (nonzero) digits is 388800, while the sum is 46.

The square root of 86945590 is about 9324.4619147702. The cubic root of 86945590 is about 443.0123699936.

The spelling of 86945590 in words is "eighty-six million, nine hundred forty-five thousand, five hundred ninety".