91923243 has 8 divisors (see below), whose sum is σ = 126790800. Its totient is φ = 59168928.

The previous prime is 91923229. The next prime is 91923259. The reversal of 91923243 is 34232919.

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

It is not a de Polignac number, because 91923243 - 2⁶ = 91923179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91923043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528208 + ... + 528381.

It is an arithmetic number, because the mean of its divisors is an integer number (15848850).

Almost surely, 2^91923243 is an apocalyptic number.

91923243 is a deficient number, since it is larger than the sum of its proper divisors (34867557).

91923243 is a wasteful number, since it uses less digits than its factorization.

91923243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056621.

The product of its digits is 11664, while the sum is 33.

The square root of 91923243 is about 9587.6609764843. The cubic root of 91923243 is about 451.3101620459.

The spelling of 91923243 in words is "ninety-one million, nine hundred twenty-three thousand, two hundred forty-three".