23227919 has 16 divisors (see below), whose sum is σ = 27525120. Its totient is φ = 19323360.

The previous prime is 23227909. The next prime is 23227921. The reversal of 23227919 is 91972232.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23227919 is a prime.

It is a super-2 number, since 2×23227919² = 1079072442141122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23227909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17522 + ... + 18800.

It is an arithmetic number, because the mean of its divisors is an integer number (1720320).

Almost surely, 2^23227919 is an apocalyptic number.

23227919 is a deficient number, since it is larger than the sum of its proper divisors (4297201).

23227919 is a wasteful number, since it uses less digits than its factorization.

23227919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430.

The product of its digits is 13608, while the sum is 35.

The square root of 23227919 is about 4819.5351435590. The cubic root of 23227919 is about 285.3229907464.

The spelling of 23227919 in words is "twenty-three million, two hundred twenty-seven thousand, nine hundred nineteen".