91906982 has 16 divisors (see below), whose sum is σ = 142569072. Its totient is φ = 44410080.

The previous prime is 91906973. The next prime is 91906993. The reversal of 91906982 is 28960919.

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, 632 + ... + 13572.

It is an arithmetic number, because the mean of its divisors is an integer number (8910567).

Almost surely, 2^91906982 is an apocalyptic number.

91906982 is a deficient number, since it is larger than the sum of its proper divisors (50662090).

91906982 is a wasteful number, since it uses less digits than its factorization.

91906982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13063.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 91906982 is about 9586.8129219256. The cubic root of 91906982 is about 451.2835485835.

The spelling of 91906982 in words is "ninety-one million, nine hundred six thousand, nine hundred eighty-two".