91333432 has 8 divisors (see below), whose sum is σ = 171250200. Its totient is φ = 45666712.

The previous prime is 91333397. The next prime is 91333481. The reversal of 91333432 is 23433319.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 91333432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5708332 + ... + 5708347.

It is an arithmetic number, because the mean of its divisors is an integer number (21406275).

Almost surely, 2^91333432 is an apocalyptic number.

It is an amenable number.

91333432 is a deficient number, since it is larger than the sum of its proper divisors (79916768).

91333432 is a wasteful number, since it uses less digits than its factorization.

91333432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11416685 (or 11416681 counting only the distinct ones).

The product of its digits is 5832, while the sum is 28.

The square root of 91333432 is about 9556.8526199790. The cubic root of 91333432 is about 450.3428366827.

The spelling of 91333432 in words is "ninety-one million, three hundred thirty-three thousand, four hundred thirty-two".