23234621 has 4 divisors (see below), whose sum is σ = 23246652. Its totient is φ = 23222592.

The previous prime is 23234609. The next prime is 23234633. The reversal of 23234621 is 12643232.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (23234609) and next prime (23234633).

It can be written as a sum of positive squares in 2 ways, for example, as 22944100 + 290521 = 4790^2 + 539^2 .

It is a cyclic number.

It is not a de Polignac number, because 23234621 - 2¹⁰ = 23233597 is a prime.

It is a super-2 number, since 2×23234621² = 1079695226027282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23234641) 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, 2390 + ... + 7223.

It is an arithmetic number, because the mean of its divisors is an integer number (5811663).

Almost surely, 2^23234621 is an apocalyptic number.

It is an amenable number.

23234621 is a deficient number, since it is larger than the sum of its proper divisors (12031).

23234621 is an equidigital number, since it uses as much as digits as its factorization.

23234621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12030.

The product of its digits is 1728, while the sum is 23.

The square root of 23234621 is about 4820.2303886848. The cubic root of 23234621 is about 285.3504297204.

Adding to 23234621 its reverse (12643232), we get a palindrome (35877853).

The spelling of 23234621 in words is "twenty-three million, two hundred thirty-four thousand, six hundred twenty-one".