23456690 has 8 divisors (see below), whose sum is σ = 42222060. Its totient is φ = 9382672.

The previous prime is 23456683. The next prime is 23456717. The reversal of 23456690 is 9665432.

It can be written as a sum of positive squares in 2 ways, for example, as 19704721 + 3751969 = 4439^2 + 1937^2 .

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

It is a super-2 number, since 2×23456690² = 1100432611512200, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23456690.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1172825 + ... + 1172844.

Almost surely, 2^23456690 is an apocalyptic number.

23456690 is a deficient number, since it is larger than the sum of its proper divisors (18765370).

23456690 is a wasteful number, since it uses less digits than its factorization.

23456690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345676.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 23456690 is about 4843.2107119142. The cubic root of 23456690 is about 286.2566444559.

The spelling of 23456690 in words is "twenty-three million, four hundred fifty-six thousand, six hundred ninety".