422035921 has 2 divisors, whose sum is σ = 422035922. Its totient is φ = 422035920.

The previous prime is 422035907. The next prime is 422035937. The reversal of 422035921 is 129530224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 393466896 + 28569025 = 19836^2 + 5345^2 .

It is a cyclic number.

It is not a de Polignac number, because 422035921 - 2⁷ = 422035793 is a prime.

It is a super-2 number, since 2×422035921² = 356228637228636482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 422035921.

It is not a weakly prime, because it can be changed into another prime (422035951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211017960 + 211017961.

It is an arithmetic number, because the mean of its divisors is an integer number (211017961).

Almost surely, 2^422035921 is an apocalyptic number.

It is an amenable number.

422035921 is a deficient number, since it is larger than the sum of its proper divisors (1).

422035921 is an equidigital number, since it uses as much as digits as its factorization.

422035921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 422035921 is about 20543.5128690300. The cubic root of 422035921 is about 750.0953484703.

The spelling of 422035921 in words is "four hundred twenty-two million, thirty-five thousand, nine hundred twenty-one".