401895223 has 2 divisors, whose sum is σ = 401895224. Its totient is φ = 401895222.

The previous prime is 401895203. The next prime is 401895227. The reversal of 401895223 is 322598104.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-401895223 is a prime.

It is equal to p_21431869 and since 401895223 and 21431869 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 (401895227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200947611 + 200947612.

It is an arithmetic number, because the mean of its divisors is an integer number (200947612).

Almost surely, 2^401895223 is an apocalyptic number.

401895223 is a deficient number, since it is larger than the sum of its proper divisors (1).

401895223 is an equidigital number, since it uses as much as digits as its factorization.

401895223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 401895223 is about 20047.3245845923. The cubic root of 401895223 is about 737.9681435661.

The spelling of 401895223 in words is "four hundred one million, eight hundred ninety-five thousand, two hundred twenty-three".