23672681 has 4 divisors (see below), whose sum is σ = 24701952. Its totient is φ = 22643412.

The previous prime is 23672647. The next prime is 23672743. The reversal of 23672681 is 18627632.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23672681 - 2²² = 19478377 is a prime.

It is a super-2 number, since 2×23672681² = 1120791651455522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23672611) 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, 514601 + ... + 514646.

It is an arithmetic number, because the mean of its divisors is an integer number (6175488).

Almost surely, 2^23672681 is an apocalyptic number.

It is an amenable number.

23672681 is a deficient number, since it is larger than the sum of its proper divisors (1029271).

23672681 is a wasteful number, since it uses less digits than its factorization.

23672681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029270.

The product of its digits is 24192, while the sum is 35.

The square root of 23672681 is about 4865.4579435034. The cubic root of 23672681 is about 287.1325857308.

The spelling of 23672681 in words is "twenty-three million, six hundred seventy-two thousand, six hundred eighty-one".