91354788 has 72 divisors (see below), whose sum is σ = 265242432. Its totient is φ = 25970112.

The previous prime is 91354729. The next prime is 91354807. The reversal of 91354788 is 88745319.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56406 + ... + 58002.

Almost surely, 2^91354788 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 91354788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132621216).

91354788 is an abundant number, since it is smaller than the sum of its proper divisors (173887644).

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

91354788 is a wasteful number, since it uses less digits than its factorization.

91354788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841 (or 1836 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 91354788 is about 9557.9698681258. The cubic root of 91354788 is about 450.3779343533.

The spelling of 91354788 in words is "ninety-one million, three hundred fifty-four thousand, seven hundred eighty-eight".