420965759 has 2 divisors, whose sum is σ = 420965760. Its totient is φ = 420965758.

The previous prime is 420965731. The next prime is 420965773. The reversal of 420965759 is 957569024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420965759 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420965789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210482879 + 210482880.

It is an arithmetic number, because the mean of its divisors is an integer number (210482880).

Almost surely, 2^420965759 is an apocalyptic number.

420965759 is a deficient number, since it is larger than the sum of its proper divisors (1).

420965759 is an equidigital number, since it uses as much as digits as its factorization.

420965759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 420965759 is about 20517.4501096018. The cubic root of 420965759 is about 749.4608029668.

The spelling of 420965759 in words is "four hundred twenty million, nine hundred sixty-five thousand, seven hundred fifty-nine".