91834379 has 12 divisors (see below), whose sum is σ = 115046064. Its totient is φ = 72659664.

The previous prime is 91834367. The next prime is 91834397. The reversal of 91834379 is 97343819.

91834379 = T₁₈₆ + T₁₈₇ + ... + T₈₂₂.

It is a happy number.

It is not a de Polignac number, because 91834379 - 2²⁰ = 90785803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91834279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71447 + ... + 72720.

It is an arithmetic number, because the mean of its divisors is an integer number (9587172).

Almost surely, 2^91834379 is an apocalyptic number.

91834379 is a deficient number, since it is larger than the sum of its proper divisors (23211685).

91834379 is a wasteful number, since it uses less digits than its factorization.

91834379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144194 (or 144187 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 91834379 is about 9583.0255660725. The cubic root of 91834379 is about 451.1646850320.

The spelling of 91834379 in words is "ninety-one million, eight hundred thirty-four thousand, three hundred seventy-nine".