224563891 has 2 divisors, whose sum is σ = 224563892. Its totient is φ = 224563890.

The previous prime is 224563837. The next prime is 224563901. The reversal of 224563891 is 198365422.

224563891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 224563891 - 2⁹ = 224563379 is a prime.

It is a super-2 number, since 2×224563891² = 100857882282119762, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (224563091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112281945 + 112281946.

It is an arithmetic number, because the mean of its divisors is an integer number (112281946).

Almost surely, 2^224563891 is an apocalyptic number.

224563891 is a deficient number, since it is larger than the sum of its proper divisors (1).

224563891 is an equidigital number, since it uses as much as digits as its factorization.

224563891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 224563891 is about 14985.4559823851. The cubic root of 224563891 is about 607.8269819830.

The spelling of 224563891 in words is "two hundred twenty-four million, five hundred sixty-three thousand, eight hundred ninety-one".