91319854 has 8 divisors (see below), whose sum is σ = 137047680. Its totient is φ = 45637296.

The previous prime is 91319843. The next prime is 91319881. The reversal of 91319854 is 45891319.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5719 + ... + 14674.

It is an arithmetic number, because the mean of its divisors is an integer number (17130960).

Almost surely, 2^91319854 is an apocalyptic number.

91319854 is a deficient number, since it is larger than the sum of its proper divisors (45727826).

91319854 is a wasteful number, since it uses less digits than its factorization.

91319854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22634.

The product of its digits is 38880, while the sum is 40.

The square root of 91319854 is about 9556.1422132574. The cubic root of 91319854 is about 450.3205189766.

The spelling of 91319854 in words is "ninety-one million, three hundred nineteen thousand, eight hundred fifty-four".