23283021 has 4 divisors (see below), whose sum is σ = 31044032. Its totient is φ = 15522012.

The previous prime is 23282981. The next prime is 23283041. The reversal of 23283021 is 12038232.

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 23283021 - 2⁷ = 23282893 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 (23283041) 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, 3880501 + ... + 3880506.

It is an arithmetic number, because the mean of its divisors is an integer number (7761008).

Almost surely, 2^23283021 is an apocalyptic number.

It is an amenable number.

23283021 is a deficient number, since it is larger than the sum of its proper divisors (7761011).

23283021 is an equidigital number, since it uses as much as digits as its factorization.

23283021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7761010.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 23283021 is about 4825.2482837674. The cubic root of 23283021 is about 285.5484299664.

The spelling of 23283021 in words is "twenty-three million, two hundred eighty-three thousand, twenty-one".