91943404 has 18 divisors (see below), whose sum is σ = 187170900. Its totient is φ = 39404232.

The previous prime is 91943387. The next prime is 91943441. The reversal of 91943404 is 40434919.

It is a self number, because there is not a number n which added to its sum of digits gives 91943404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 234354 + ... + 234745.

Almost surely, 2^91943404 is an apocalyptic number.

It is an amenable number.

91943404 is an abundant number, since it is smaller than the sum of its proper divisors (95227496).

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

91943404 is a wasteful number, since it uses less digits than its factorization.

91943404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469117 (or 469108 counting only the distinct ones).

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

The square root of 91943404 is about 9588.7123223090. The cubic root of 91943404 is about 451.3431540610.

The spelling of 91943404 in words is "ninety-one million, nine hundred forty-three thousand, four hundred four".