23897 has 4 divisors (see below), whose sum is σ = 24960. Its totient is φ = 22836.

The previous prime is 23893. The next prime is 23899. The reversal of 23897 is 79832.

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 23897 - 2² = 23893 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 3⁸ + 8 + 9 + 7⁵ .

It is a Duffinian number.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (23893) 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, 497 + ... + 542.

It is an arithmetic number, because the mean of its divisors is an integer number (6240).

2²³⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

23897 is a deficient number, since it is larger than the sum of its proper divisors (1063).

23897 is a wasteful number, since it uses less digits than its factorization.

23897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062.

The product of its digits is 3024, while the sum is 29.

The square root of 23897 is about 154.5865453395. The cubic root of 23897 is about 28.8036678713.

The spelling of 23897 in words is "twenty-three thousand, eight hundred ninety-seven".