23897453 has 4 divisors (see below), whose sum is σ = 24021468. Its totient is φ = 23773440.

The previous prime is 23897417. The next prime is 23897477. The reversal of 23897453 is 35479832.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3988009 + 19909444 = 1997^2 + 4462^2 .

It is a cyclic number.

It is not a de Polignac number, because 23897453 - 2⁶ = 23897389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23897453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23890453) 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, 61718 + ... + 62103.

It is an arithmetic number, because the mean of its divisors is an integer number (6005367).

Almost surely, 2^23897453 is an apocalyptic number.

It is an amenable number.

23897453 is a deficient number, since it is larger than the sum of its proper divisors (124015).

23897453 is a wasteful number, since it uses less digits than its factorization.

23897453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124014.

The product of its digits is 181440, while the sum is 41.

The square root of 23897453 is about 4888.5021223275. The cubic root of 23897453 is about 288.0384987436.

The spelling of 23897453 in words is "twenty-three million, eight hundred ninety-seven thousand, four hundred fifty-three".