23887197 has 16 divisors (see below), whose sum is σ = 35544960. Its totient is φ = 15854400.

The previous prime is 23887187. The next prime is 23887217. The reversal of 23887197 is 79178832.

It is not a de Polignac number, because 23887197 - 2⁷ = 23887069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23887117) 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, 4672 + ... + 8342.

It is an arithmetic number, because the mean of its divisors is an integer number (2221560).

Almost surely, 2^23887197 is an apocalyptic number.

23887197 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

23887197 is a deficient number, since it is larger than the sum of its proper divisors (11657763).

23887197 is a wasteful number, since it uses less digits than its factorization.

23887197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921 (or 3915 counting only the distinct ones).

The product of its digits is 169344, while the sum is 45.

The square root of 23887197 is about 4887.4530176770. The cubic root of 23887197 is about 287.9972873008.

The spelling of 23887197 in words is "twenty-three million, eight hundred eighty-seven thousand, one hundred ninety-seven".