91893366 has 72 divisors (see below), whose sum is σ = 212565600. Its totient is φ = 29778192.

The previous prime is 91893343. The next prime is 91893371. The reversal of 91893366 is 66339819.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 616660 + ... + 616808.

It is an arithmetic number, because the mean of its divisors is an integer number (2952300).

Almost surely, 2^91893366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91893366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (106282800).

91893366 is an abundant number, since it is smaller than the sum of its proper divisors (120672234).

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

91893366 is an equidigital number, since it uses as much as digits as its factorization.

91893366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 201 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 91893366 is about 9586.1027534656. The cubic root of 91893366 is about 451.2612616286.

The spelling of 91893366 in words is "ninety-one million, eight hundred ninety-three thousand, three hundred sixty-six".