91493404 has 12 divisors (see below), whose sum is σ = 160496728. Its totient is φ = 45637200.

The previous prime is 91493399. The next prime is 91493411. The reversal of 91493404 is 40439419.

It is a self number, because there is not a number n which added to its sum of digits gives 91493404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25482 + ... + 28849.

Almost surely, 2^91493404 is an apocalyptic number.

It is an amenable number.

91493404 is a deficient number, since it is larger than the sum of its proper divisors (69003324).

91493404 is a wasteful number, since it uses less digits than its factorization.

91493404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54756 (or 54754 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 91493404 is about 9565.2184501976. The cubic root of 91493404 is about 450.6056109394.

The spelling of 91493404 in words is "ninety-one million, four hundred ninety-three thousand, four hundred four".