91413384 has 64 divisors (see below), whose sum is σ = 237047040. Its totient is φ = 29352960.

The previous prime is 91413367. The next prime is 91413391. The reversal of 91413384 is 48331419.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99889 + ... + 100799.

It is an arithmetic number, because the mean of its divisors is an integer number (3703860).

Almost surely, 2^91413384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91413384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118523520).

91413384 is an abundant number, since it is smaller than the sum of its proper divisors (145633656).

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

91413384 is a wasteful number, since it uses less digits than its factorization.

91413384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1066 counting only the distinct ones).

The product of its digits is 10368, while the sum is 33.

The square root of 91413384 is about 9561.0346720426. The cubic root of 91413384 is about 450.4742062826.

The spelling of 91413384 in words is "ninety-one million, four hundred thirteen thousand, three hundred eighty-four".