91494994 has 16 divisors (see below), whose sum is σ = 147542400. Its totient is φ = 42416784.

The previous prime is 91494983. The next prime is 91495007. The reversal of 91494994 is 49949419.

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, 23829 + ... + 27400.

It is an arithmetic number, because the mean of its divisors is an integer number (9221400).

Almost surely, 2^91494994 is an apocalyptic number.

91494994 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

91494994 is a deficient number, since it is larger than the sum of its proper divisors (56047406).

91494994 is a wasteful number, since it uses less digits than its factorization.

91494994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51297.

The product of its digits is 419904, while the sum is 49.

The square root of 91494994 is about 9565.3015634636. The cubic root of 91494994 is about 450.6082211777.

The spelling of 91494994 in words is "ninety-one million, four hundred ninety-four thousand, nine hundred ninety-four".