23969615 has 4 divisors (see below), whose sum is σ = 28763544. Its totient is φ = 19175688.

The previous prime is 23969567. The next prime is 23969629. The reversal of 23969615 is 51696932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23969615 - 2⁶ = 23969551 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 2396957 + ... + 2396966.

It is an arithmetic number, because the mean of its divisors is an integer number (7190886).

Almost surely, 2^23969615 is an apocalyptic number.

23969615 is a deficient number, since it is larger than the sum of its proper divisors (4793929).

23969615 is an equidigital number, since it uses as much as digits as its factorization.

23969615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4793928.

The product of its digits is 87480, while the sum is 41.

The square root of 23969615 is about 4895.8773473199. The cubic root of 23969615 is about 288.3281327836.

The spelling of 23969615 in words is "twenty-three million, nine hundred sixty-nine thousand, six hundred fifteen".