23401789 has 4 divisors (see below), whose sum is σ = 23415840. Its totient is φ = 23387740.

The previous prime is 23401783. The next prime is 23401793. The reversal of 23401789 is 98710432.

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 23401789 - 2⁹ = 23401277 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 (23401783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4129 + ... + 7990.

It is an arithmetic number, because the mean of its divisors is an integer number (5853960).

Almost surely, 2^23401789 is an apocalyptic number.

It is an amenable number.

23401789 is a deficient number, since it is larger than the sum of its proper divisors (14051).

23401789 is a wasteful number, since it uses less digits than its factorization.

23401789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14050.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 23401789 is about 4837.5395605618. The cubic root of 23401789 is about 286.0331395899.

The spelling of 23401789 in words is "twenty-three million, four hundred one thousand, seven hundred eighty-nine".