23891315 has 16 divisors (see below), whose sum is σ = 33566400. Its totient is φ = 15982080.

The previous prime is 23891299. The next prime is 23891317. The reversal of 23891315 is 51319832.

It is not a de Polignac number, because 23891315 - 2⁴ = 23891299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23891317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6890 + ... + 9759.

It is an arithmetic number, because the mean of its divisors is an integer number (2097900).

Almost surely, 2^23891315 is an apocalyptic number.

23891315 is a deficient number, since it is larger than the sum of its proper divisors (9675085).

23891315 is a wasteful number, since it uses less digits than its factorization.

23891315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16702.

The product of its digits is 6480, while the sum is 32.

The square root of 23891315 is about 4887.8742823440. The cubic root of 23891315 is about 288.0138359801.

The spelling of 23891315 in words is "twenty-three million, eight hundred ninety-one thousand, three hundred fifteen".