23228447 has 4 divisors (see below), whose sum is σ = 25340136. Its totient is φ = 21116760.

The previous prime is 23228441. The next prime is 23228453. The reversal of 23228447 is 74482232.

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

It is an interprime number because it is at equal distance from previous prime (23228441) and next prime (23228453).

It is a cyclic number.

It is not a de Polignac number, because 23228447 - 2⁶ = 23228383 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 (23228441) 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, 1055828 + ... + 1055849.

It is an arithmetic number, because the mean of its divisors is an integer number (6335034).

Almost surely, 2^23228447 is an apocalyptic number.

23228447 is a deficient number, since it is larger than the sum of its proper divisors (2111689).

23228447 is a wasteful number, since it uses less digits than its factorization.

23228447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111688.

The product of its digits is 21504, while the sum is 32.

The square root of 23228447 is about 4819.5899203148. The cubic root of 23228447 is about 285.3251526476.

The spelling of 23228447 in words is "twenty-three million, two hundred twenty-eight thousand, four hundred forty-seven".