23493479 has 4 divisors (see below), whose sum is σ = 23878680. Its totient is φ = 23108280.

The previous prime is 23493433. The next prime is 23493487. The reversal of 23493479 is 97439432.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23493479 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 (23493499) 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, 192509 + ... + 192630.

It is an arithmetic number, because the mean of its divisors is an integer number (5969670).

Almost surely, 2^23493479 is an apocalyptic number.

23493479 is a deficient number, since it is larger than the sum of its proper divisors (385201).

23493479 is an equidigital number, since it uses as much as digits as its factorization.

23493479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385200.

The product of its digits is 163296, while the sum is 41.

The square root of 23493479 is about 4847.0072209560. The cubic root of 23493479 is about 286.4062193376.

The spelling of 23493479 in words is "twenty-three million, four hundred ninety-three thousand, four hundred seventy-nine".