23087117 has 4 divisors (see below), whose sum is σ = 23105916. Its totient is φ = 23068320.

The previous prime is 23087111. The next prime is 23087123. The reversal of 23087117 is 71178032.

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

It is an interprime number because it is at equal distance from previous prime (23087111) and next prime (23087123).

It can be written as a sum of positive squares in 2 ways, for example, as 11703241 + 11383876 = 3421^2 + 3374^2 .

It is a cyclic number.

It is not a de Polignac number, because 23087117 - 2²² = 18892813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23087117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23087111) 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, 7418 + ... + 10059.

It is an arithmetic number, because the mean of its divisors is an integer number (5776479).

Almost surely, 2^23087117 is an apocalyptic number.

It is an amenable number.

23087117 is a deficient number, since it is larger than the sum of its proper divisors (18799).

23087117 is a wasteful number, since it uses less digits than its factorization.

23087117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18798.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 23087117 is about 4804.9055141595. The cubic root of 23087117 is about 284.7453023573.

The spelling of 23087117 in words is "twenty-three million, eighty-seven thousand, one hundred seventeen".