402775223 has 2 divisors, whose sum is σ = 402775224. Its totient is φ = 402775222.

The previous prime is 402775213. The next prime is 402775291. The reversal of 402775223 is 322577204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 402775223 - 2⁴ = 402775207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 402775223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402775213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201387611 + 201387612.

It is an arithmetic number, because the mean of its divisors is an integer number (201387612).

Almost surely, 2^402775223 is an apocalyptic number.

402775223 is a deficient number, since it is larger than the sum of its proper divisors (1).

402775223 is an equidigital number, since it uses as much as digits as its factorization.

402775223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 402775223 is about 20069.2606490623. The cubic root of 402775223 is about 738.5063755192.

The spelling of 402775223 in words is "four hundred two million, seven hundred seventy-five thousand, two hundred twenty-three".