91374299 has 4 divisors (see below), whose sum is σ = 91662864. Its totient is φ = 91085736.

The previous prime is 91374293. The next prime is 91374317. The reversal of 91374299 is 99247319.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91374299 - 2⁸ = 91374043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91374293) 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, 143807 + ... + 144440.

It is an arithmetic number, because the mean of its divisors is an integer number (22915716).

Almost surely, 2^91374299 is an apocalyptic number.

91374299 is a deficient number, since it is larger than the sum of its proper divisors (288565).

91374299 is a wasteful number, since it uses less digits than its factorization.

91374299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288564.

The product of its digits is 122472, while the sum is 44.

The square root of 91374299 is about 9558.9904801710. The cubic root of 91374299 is about 450.4099950643.

The spelling of 91374299 in words is "ninety-one million, three hundred seventy-four thousand, two hundred ninety-nine".