91994044 has 12 divisors (see below), whose sum is σ = 161064568. Its totient is φ = 45975600.

The previous prime is 91994033. The next prime is 91994047. The reversal of 91994044 is 44049919.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 91993988 and 91994006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91994047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8014 + ... + 15754.

Almost surely, 2^91994044 is an apocalyptic number.

It is an amenable number.

91994044 is a deficient number, since it is larger than the sum of its proper divisors (69070524).

91994044 is a wasteful number, since it uses less digits than its factorization.

91994044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10716 (or 10714 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 91994044 is about 9591.3525636377. The cubic root of 91994044 is about 451.4260014847.

The spelling of 91994044 in words is "ninety-one million, nine hundred ninety-four thousand, forty-four".