23459917 has 4 divisors (see below), whose sum is σ = 25264540. Its totient is φ = 21655296.

The previous prime is 23459903. The next prime is 23459923. The reversal of 23459917 is 71995432.

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 1454436 + 22005481 = 1206^2 + 4691^2 .

It is not a de Polignac number, because 23459917 - 2⁷ = 23459789 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 23459917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23459987) 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, 902292 + ... + 902317.

It is an arithmetic number, because the mean of its divisors is an integer number (6316135).

Almost surely, 2^23459917 is an apocalyptic number.

It is an amenable number.

23459917 is a deficient number, since it is larger than the sum of its proper divisors (1804623).

23459917 is a wasteful number, since it uses less digits than its factorization.

23459917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804622.

The product of its digits is 68040, while the sum is 40.

The square root of 23459917 is about 4843.5438472259. The cubic root of 23459917 is about 286.2697708864.

The spelling of 23459917 in words is "twenty-three million, four hundred fifty-nine thousand, nine hundred seventeen".