420407963 has 2 divisors, whose sum is σ = 420407964. Its totient is φ = 420407962.

The previous prime is 420407941. The next prime is 420407989. The reversal of 420407963 is 369704024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420407963 - 2⁶ = 420407899 is a prime.

It is a super-3 number, since 3×420407963³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (420407063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210203981 + 210203982.

It is an arithmetic number, because the mean of its divisors is an integer number (210203982).

Almost surely, 2^420407963 is an apocalyptic number.

420407963 is a deficient number, since it is larger than the sum of its proper divisors (1).

420407963 is an equidigital number, since it uses as much as digits as its factorization.

420407963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 420407963 is about 20503.8523941234. The cubic root of 420407963 is about 749.1296350847.

The spelling of 420407963 in words is "four hundred twenty million, four hundred seven thousand, nine hundred sixty-three".