23849897 has 4 divisors (see below), whose sum is σ = 23938176. Its totient is φ = 23761620.

The previous prime is 23849887. The next prime is 23849939. The reversal of 23849897 is 79894832.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-23849897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23849887) 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, 43733 + ... + 44274.

It is an arithmetic number, because the mean of its divisors is an integer number (5984544).

Almost surely, 2^23849897 is an apocalyptic number.

It is an amenable number.

23849897 is a deficient number, since it is larger than the sum of its proper divisors (88279).

23849897 is an equidigital number, since it uses as much as digits as its factorization.

23849897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88278.

The product of its digits is 870912, while the sum is 50.

The square root of 23849897 is about 4883.6356334190. The cubic root of 23849897 is about 287.8473060499.

The spelling of 23849897 in words is "twenty-three million, eight hundred forty-nine thousand, eight hundred ninety-seven".