91334291 has 4 divisors (see below), whose sum is σ = 91420800. Its totient is φ = 91247784.

The previous prime is 91334281. The next prime is 91334293. The reversal of 91334291 is 19243319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19243319 = 1039 ⋅18521.

It is a cyclic number.

It is not a de Polignac number, because 91334291 - 2⁶ = 91334227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91334293) 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, 41651 + ... + 43788.

It is an arithmetic number, because the mean of its divisors is an integer number (22855200).

Almost surely, 2^91334291 is an apocalyptic number.

91334291 is a deficient number, since it is larger than the sum of its proper divisors (86509).

91334291 is a wasteful number, since it uses less digits than its factorization.

91334291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86508.

The product of its digits is 5832, while the sum is 32.

The square root of 91334291 is about 9556.8975614474. The cubic root of 91334291 is about 450.3442485180.

The spelling of 91334291 in words is "ninety-one million, three hundred thirty-four thousand, two hundred ninety-one".