23985797 has 4 divisors (see below), whose sum is σ = 26166336. Its totient is φ = 21805260.

The previous prime is 23985791. The next prime is 23985817. The reversal of 23985797 is 79758932.

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 not a de Polignac number, because 23985797 - 2⁴ = 23985781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23985791) 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, 1090253 + ... + 1090274.

It is an arithmetic number, because the mean of its divisors is an integer number (6541584).

Almost surely, 2^23985797 is an apocalyptic number.

It is an amenable number.

23985797 is a deficient number, since it is larger than the sum of its proper divisors (2180539).

23985797 is a wasteful number, since it uses less digits than its factorization.

23985797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2180538.

The product of its digits is 952560, while the sum is 50.

The square root of 23985797 is about 4897.5296834220. The cubic root of 23985797 is about 288.3930020815.

The spelling of 23985797 in words is "twenty-three million, nine hundred eighty-five thousand, seven hundred ninety-seven".