23445789 has 4 divisors (see below), whose sum is σ = 31261056. Its totient is φ = 15630524.

The previous prime is 23445767. The next prime is 23445803. The reversal of 23445789 is 98754432.

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 23445789 - 2²¹ = 21348637 is a prime.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 23445789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23445739) 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, 3907629 + ... + 3907634.

It is an arithmetic number, because the mean of its divisors is an integer number (7815264).

Almost surely, 2^23445789 is an apocalyptic number.

It is an amenable number.

23445789 is a deficient number, since it is larger than the sum of its proper divisors (7815267).

23445789 is an equidigital number, since it uses as much as digits as its factorization.

23445789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7815266.

The product of its digits is 241920, while the sum is 42.

The square root of 23445789 is about 4842.0851913200. The cubic root of 23445789 is about 286.2122936801.

The spelling of 23445789 in words is "twenty-three million, four hundred forty-five thousand, seven hundred eighty-nine".