91163373 has 12 divisors (see below), whose sum is σ = 141396480. Its totient is φ = 52093272.

The previous prime is 91163353. The next prime is 91163399. The reversal of 91163373 is 37336119.

It is not a de Polignac number, because 91163373 - 2¹⁴ = 91146989 is a prime.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91163353) 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, 309933 + ... + 310226.

It is an arithmetic number, because the mean of its divisors is an integer number (11783040).

Almost surely, 2^91163373 is an apocalyptic number.

It is an amenable number.

91163373 is a deficient number, since it is larger than the sum of its proper divisors (50233107).

91163373 is a wasteful number, since it uses less digits than its factorization.

91163373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620176 (or 620169 counting only the distinct ones).

The product of its digits is 10206, while the sum is 33.

The square root of 91163373 is about 9547.9512462098. The cubic root of 91163373 is about 450.0631565678.

The spelling of 91163373 in words is "ninety-one million, one hundred sixty-three thousand, three hundred seventy-three".