23628691 has 8 divisors (see below), whose sum is σ = 25116480. Its totient is φ = 22151808.

The previous prime is 23628677. The next prime is 23628697. The reversal of 23628691 is 19682632.

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

It is a cyclic number.

It is not a de Polignac number, because 23628691 - 2¹⁷ = 23497619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23628691.

It is not an unprimeable number, because it can be changed into a prime (23628697) 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, 1990 + ... + 7156.

It is an arithmetic number, because the mean of its divisors is an integer number (3139560).

Almost surely, 2^23628691 is an apocalyptic number.

23628691 is a deficient number, since it is larger than the sum of its proper divisors (1487789).

23628691 is a wasteful number, since it uses less digits than its factorization.

23628691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5453.

The product of its digits is 31104, while the sum is 37.

The square root of 23628691 is about 4860.9351980869. The cubic root of 23628691 is about 286.9546197679.

The spelling of 23628691 in words is "twenty-three million, six hundred twenty-eight thousand, six hundred ninety-one".