91332284 has 12 divisors (see below), whose sum is σ = 159916344. Its totient is φ = 45641904.

The previous prime is 91332277. The next prime is 91332289. The reversal of 91332284 is 48223319.

It is a happy number.

It is a super-2 number, since 2×91332284² = 16683172201313312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 91332284.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91332289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4439 + ... + 14225.

It is an arithmetic number, because the mean of its divisors is an integer number (13326362).

Almost surely, 2^91332284 is an apocalyptic number.

It is an amenable number.

91332284 is a deficient number, since it is larger than the sum of its proper divisors (68584060).

91332284 is a wasteful number, since it uses less digits than its factorization.

91332284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12124 (or 12122 counting only the distinct ones).

The product of its digits is 10368, while the sum is 32.

The square root of 91332284 is about 9556.7925581756. The cubic root of 91332284 is about 450.3409498390.

The spelling of 91332284 in words is "ninety-one million, three hundred thirty-two thousand, two hundred eighty-four".