23415393 has 4 divisors (see below), whose sum is σ = 31220528. Its totient is φ = 15610260.

The previous prime is 23415373. The next prime is 23415397. The reversal of 23415393 is 39351432.

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 not a de Polignac number, because 23415393 - 2²² = 19221089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23415393.

It is not an unprimeable number, because it can be changed into a prime (23415397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3902563 + ... + 3902568.

It is an arithmetic number, because the mean of its divisors is an integer number (7805132).

Almost surely, 2^23415393 is an apocalyptic number.

It is an amenable number.

23415393 is a deficient number, since it is larger than the sum of its proper divisors (7805135).

23415393 is an equidigital number, since it uses as much as digits as its factorization.

23415393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7805134.

The product of its digits is 9720, while the sum is 30.

The square root of 23415393 is about 4838.9454429659. The cubic root of 23415393 is about 286.0885547415.

It can be divided in two parts, 23 and 415393, that added together give a triangular number (415416 = T₉₁₁).

The spelling of 23415393 in words is "twenty-three million, four hundred fifteen thousand, three hundred ninety-three".