23117797 has 4 divisors (see below), whose sum is σ = 23273100. Its totient is φ = 22962496.

The previous prime is 23117771. The next prime is 23117803. The reversal of 23117797 is 79771132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10150596 + 12967201 = 3186^2 + 3601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23117797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23117197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77428 + ... + 77725.

It is an arithmetic number, because the mean of its divisors is an integer number (5818275).

Almost surely, 2^23117797 is an apocalyptic number.

It is an amenable number.

23117797 is a deficient number, since it is larger than the sum of its proper divisors (155303).

23117797 is a wasteful number, since it uses less digits than its factorization.

23117797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155302.

The product of its digits is 18522, while the sum is 37.

The square root of 23117797 is about 4808.0970248114. The cubic root of 23117797 is about 284.8713772737.

The spelling of 23117797 in words is "twenty-three million, one hundred seventeen thousand, seven hundred ninety-seven".