420796919 has 2 divisors, whose sum is σ = 420796920. Its totient is φ = 420796918.

The previous prime is 420796913. The next prime is 420796939. The reversal of 420796919 is 919697024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420796919 - 2²⁴ = 404019703 is a prime.

It is a super-2 number, since 2×420796919² = 354140094079785122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420796913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210398459 + 210398460.

It is an arithmetic number, because the mean of its divisors is an integer number (210398460).

Almost surely, 2^420796919 is an apocalyptic number.

420796919 is a deficient number, since it is larger than the sum of its proper divisors (1).

420796919 is an equidigital number, since it uses as much as digits as its factorization.

420796919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 420796919 is about 20513.3351505795. The cubic root of 420796919 is about 749.3605922170.

The spelling of 420796919 in words is "four hundred twenty million, seven hundred ninety-six thousand, nine hundred nineteen".