23688789 has 4 divisors (see below), whose sum is σ = 31585056. Its totient is φ = 15792524.

The previous prime is 23688751. The next prime is 23688809. The reversal of 23688789 is 98788632.

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 23688789 - 2¹³ = 23680597 is a prime.

It is a super-2 number, since 2×23688789² = 1122317448573042, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23683789) 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, 3948129 + ... + 3948134.

It is an arithmetic number, because the mean of its divisors is an integer number (7896264).

Almost surely, 2^23688789 is an apocalyptic number.

It is an amenable number.

23688789 is a deficient number, since it is larger than the sum of its proper divisors (7896267).

23688789 is an equidigital number, since it uses as much as digits as its factorization.

23688789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7896266.

The product of its digits is 1161216, while the sum is 51.

The square root of 23688789 is about 4867.1130046466. The cubic root of 23688789 is about 287.1976971143.

The spelling of 23688789 in words is "twenty-three million, six hundred eighty-eight thousand, seven hundred eighty-nine".