23421967 has 4 divisors (see below), whose sum is σ = 23475760. Its totient is φ = 23368176.

The previous prime is 23421961. The next prime is 23421989. The reversal of 23421967 is 76912432.

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

It is a cyclic number.

It is not a de Polignac number, because 23421967 - 2¹¹ = 23419919 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 (23421961) 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, 26238 + ... + 27115.

It is an arithmetic number, because the mean of its divisors is an integer number (5868940).

Almost surely, 2^23421967 is an apocalyptic number.

23421967 is a deficient number, since it is larger than the sum of its proper divisors (53793).

23421967 is an equidigital number, since it uses as much as digits as its factorization.

23421967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53792.

The product of its digits is 18144, while the sum is 34.

The square root of 23421967 is about 4839.6246755301. The cubic root of 23421967 is about 286.1153258799.

It can be divided in two parts, 234 and 21967, that added together give a square (22201 = 149²).

The spelling of 23421967 in words is "twenty-three million, four hundred twenty-one thousand, nine hundred sixty-seven".