223374391 has 2 divisors, whose sum is σ = 223374392. Its totient is φ = 223374390.

The previous prime is 223374341. The next prime is 223374397. The reversal of 223374391 is 193473322.

223374391 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 223374391 - 2²³ = 214985783 is a prime.

It is a super-2 number, since 2×223374391² = 99792237109241762, which contains 22 as substring.

It is equal to p_12298255 and since 223374391 and 12298255 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223374397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111687195 + 111687196.

It is an arithmetic number, because the mean of its divisors is an integer number (111687196).

Almost surely, 2^223374391 is an apocalyptic number.

223374391 is the 9453-rd centered pentagonal number.

223374391 is a deficient number, since it is larger than the sum of its proper divisors (1).

223374391 is an equidigital number, since it uses as much as digits as its factorization.

223374391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27216, while the sum is 34.

The square root of 223374391 is about 14945.7148039162. The cubic root of 223374391 is about 606.7518751158.

The spelling of 223374391 in words is "two hundred twenty-three million, three hundred seventy-four thousand, three hundred ninety-one".