86949566 has 16 divisors (see below), whose sum is σ = 142458480. Its totient is φ = 39473280.

The previous prime is 86949553. The next prime is 86949571. The reversal of 86949566 is 66594968.

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, 20240 + ... + 24156.

It is an arithmetic number, because the mean of its divisors is an integer number (8903655).

Almost surely, 2^86949566 is an apocalyptic number.

86949566 is a deficient number, since it is larger than the sum of its proper divisors (55508914).

86949566 is a wasteful number, since it uses less digits than its factorization.

86949566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4939.

The product of its digits is 2799360, while the sum is 53.

The square root of 86949566 is about 9324.6751149839. The cubic root of 86949566 is about 443.0191228388.

The spelling of 86949566 in words is "eighty-six million, nine hundred forty-nine thousand, five hundred sixty-six".