23191097 has 8 divisors (see below), whose sum is σ = 24067200. Its totient is φ = 22320144.

The previous prime is 23191093. The next prime is 23191099. The reversal of 23191097 is 79019132.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 23191097 - 2² = 23191093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23191093) 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, 9554 + ... + 11732.

It is an arithmetic number, because the mean of its divisors is an integer number (3008400).

Almost surely, 2^23191097 is an apocalyptic number.

It is an amenable number.

23191097 is a deficient number, since it is larger than the sum of its proper divisors (876103).

23191097 is a wasteful number, since it uses less digits than its factorization.

23191097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 23191097 is about 4815.7135504513. The cubic root of 23191097 is about 285.1721418235.

The spelling of 23191097 in words is "twenty-three million, one hundred ninety-one thousand, ninety-seven".