91886982 has 32 divisors (see below), whose sum is σ = 202746240. Its totient is φ = 27529920.

The previous prime is 91886969. The next prime is 91887011. The reversal of 91886982 is 28968819.

It is a super-2 number, since 2×91886982² = 16886434922136648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1948 + ... + 13695.

It is an arithmetic number, because the mean of its divisors is an integer number (6335820).

Almost surely, 2^91886982 is an apocalyptic number.

91886982 is an abundant number, since it is smaller than the sum of its proper divisors (110859258).

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

91886982 is a wasteful number, since it uses less digits than its factorization.

91886982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15748.

The product of its digits is 497664, while the sum is 51.

The square root of 91886982 is about 9585.7697656474. The cubic root of 91886982 is about 451.2508114052.

The spelling of 91886982 in words is "ninety-one million, eight hundred eighty-six thousand, nine hundred eighty-two".