23291093 has 16 divisors (see below), whose sum is σ = 28782720. Its totient is φ = 18398016.

The previous prime is 23291087. The next prime is 23291117. The reversal of 23291093 is 39019232.

It is not a de Polignac number, because 23291093 - 2⁴ = 23291077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23291083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2555 + ... + 7287.

It is an arithmetic number, because the mean of its divisors is an integer number (1798920).

Almost surely, 2^23291093 is an apocalyptic number.

It is an amenable number.

23291093 is a deficient number, since it is larger than the sum of its proper divisors (5491627).

23291093 is a wasteful number, since it uses less digits than its factorization.

23291093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4796.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 23291093 is about 4826.0846449270. The cubic root of 23291093 is about 285.5814251207.

The spelling of 23291093 in words is "twenty-three million, two hundred ninety-one thousand, ninety-three".