23494421 has 4 divisors (see below), whose sum is σ = 23845152. Its totient is φ = 23143692.

The previous prime is 23494411. The next prime is 23494441. The reversal of 23494421 is 12449432.

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 a de Polignac number, because none of the positive numbers 2^k-23494421 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 (23494411) 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, 175265 + ... + 175398.

It is an arithmetic number, because the mean of its divisors is an integer number (5961288).

Almost surely, 2^23494421 is an apocalyptic number.

It is an amenable number.

23494421 is a deficient number, since it is larger than the sum of its proper divisors (350731).

23494421 is an equidigital number, since it uses as much as digits as its factorization.

23494421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350730.

The product of its digits is 6912, while the sum is 29.

The square root of 23494421 is about 4847.1043933466. The cubic root of 23494421 is about 286.4100472233.

The spelling of 23494421 in words is "twenty-three million, four hundred ninety-four thousand, four hundred twenty-one".