23415389 has 4 divisors (see below), whose sum is σ = 23812320. Its totient is φ = 23018460.

The previous prime is 23415373. The next prime is 23415397. The reversal of 23415389 is 98351432.

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 23415389 - 2⁴ = 23415373 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 (23435389) 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, 198377 + ... + 198494.

It is an arithmetic number, because the mean of its divisors is an integer number (5953080).

Almost surely, 2^23415389 is an apocalyptic number.

It is an amenable number.

23415389 is a deficient number, since it is larger than the sum of its proper divisors (396931).

23415389 is an equidigital number, since it uses as much as digits as its factorization.

23415389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396930.

The product of its digits is 25920, while the sum is 35.

The square root of 23415389 is about 4838.9450296526. The cubic root of 23415389 is about 286.0885384509.

The spelling of 23415389 in words is "twenty-three million, four hundred fifteen thousand, three hundred eighty-nine".