23688137 has 8 divisors (see below), whose sum is σ = 26965440. Its totient is φ = 20598160.

The previous prime is 23688127. The next prime is 23688139. The reversal of 23688137 is 73188632.

It is a happy number.

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

It is not a de Polignac number, because 23688137 - 2¹² = 23684041 is a prime.

It is a super-2 number, since 2×23688137² = 1122255669061538, which contains 22 as substring.

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 23688137.

It is not an unprimeable number, because it can be changed into a prime (23688139) 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, 46562 + ... + 47067.

It is an arithmetic number, because the mean of its divisors is an integer number (3370680).

Almost surely, 2^23688137 is an apocalyptic number.

It is an amenable number.

23688137 is a deficient number, since it is larger than the sum of its proper divisors (3277303).

23688137 is a wasteful number, since it uses less digits than its factorization.

23688137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93663.

The product of its digits is 48384, while the sum is 38.

The square root of 23688137 is about 4867.0460240273. The cubic root of 23688137 is about 287.1950621883.

The spelling of 23688137 in words is "twenty-three million, six hundred eighty-eight thousand, one hundred thirty-seven".