23190993 has 12 divisors (see below), whose sum is σ = 38283648. Its totient is φ = 13251960.

The previous prime is 23190991. The next prime is 23191019. The reversal of 23190993 is 39909132.

It is not a de Polignac number, because 23190993 - 2¹ = 23190991 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23190991) 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, 183993 + ... + 184118.

It is an arithmetic number, because the mean of its divisors is an integer number (3190304).

Almost surely, 2^23190993 is an apocalyptic number.

It is an amenable number.

23190993 is a deficient number, since it is larger than the sum of its proper divisors (15092655).

23190993 is a wasteful number, since it uses less digits than its factorization.

23190993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368124 (or 368121 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 23190993 is about 4815.7027524547. The cubic root of 23190993 is about 285.1717155400.

The spelling of 23190993 in words is "twenty-three million, one hundred ninety thousand, nine hundred ninety-three".