420355937 has 2 divisors, whose sum is σ = 420355938. Its totient is φ = 420355936.

The previous prime is 420355933. The next prime is 420355951. The reversal of 420355937 is 739553024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210801361 + 209554576 = 14519^2 + 14476^2 .

It is a cyclic number.

It is not a de Polignac number, because 420355937 - 2² = 420355933 is a prime.

It is a super-2 number, since 2×420355937² = 353398227542295938, 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 420355937.

It is not a weakly prime, because it can be changed into another prime (420355931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210177968 + 210177969.

It is an arithmetic number, because the mean of its divisors is an integer number (210177969).

Almost surely, 2^420355937 is an apocalyptic number.

It is an amenable number.

420355937 is a deficient number, since it is larger than the sum of its proper divisors (1).

420355937 is an equidigital number, since it uses as much as digits as its factorization.

420355937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 113400, while the sum is 38.

The square root of 420355937 is about 20502.5836664553. The cubic root of 420355937 is about 749.0987319068.

The spelling of 420355937 in words is "four hundred twenty million, three hundred fifty-five thousand, nine hundred thirty-seven".