91885446 has 12 divisors (see below), whose sum is σ = 199085172. Its totient is φ = 30628476.

The previous prime is 91885441. The next prime is 91885447. The reversal of 91885446 is 64458819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91885441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2552356 + ... + 2552391.

It is an arithmetic number, because the mean of its divisors is an integer number (16590431).

Almost surely, 2^91885446 is an apocalyptic number.

91885446 is an abundant number, since it is smaller than the sum of its proper divisors (107199726).

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

91885446 is a wasteful number, since it uses less digits than its factorization.

91885446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5104755 (or 5104752 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 91885446 is about 9585.6896465513. The cubic root of 91885446 is about 451.2482969935.

The spelling of 91885446 in words is "ninety-one million, eight hundred eighty-five thousand, four hundred forty-six".