91350432 has 36 divisors (see below), whose sum is σ = 259778610. Its totient is φ = 30450048.

The previous prime is 91350431. The next prime is 91350437. The reversal of 91350432 is 23405319.

It can be written as a sum of positive squares in only one way, i.e., 67963536 + 23386896 = 8244^2 + 4836^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 91350396 and 91350405.

It is not an unprimeable number, because it can be changed into a prime (91350431) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 158307 + ... + 158882.

Almost surely, 2^91350432 is an apocalyptic number.

It is an amenable number.

91350432 is an abundant number, since it is smaller than the sum of its proper divisors (168428178).

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

91350432 is a wasteful number, since it uses less digits than its factorization.

91350432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317205 (or 317194 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 91350432 is about 9557.7419927512. The cubic root of 91350432 is about 450.3707758981.

The spelling of 91350432 in words is "ninety-one million, three hundred fifty thousand, four hundred thirty-two".