420026767 has 2 divisors, whose sum is σ = 420026768. Its totient is φ = 420026766.

The previous prime is 420026731. The next prime is 420026771. The reversal of 420026767 is 767620024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420026767 - 2¹⁵ = 419993999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420026707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210013383 + 210013384.

It is an arithmetic number, because the mean of its divisors is an integer number (210013384).

Almost surely, 2^420026767 is an apocalyptic number.

420026767 is a deficient number, since it is larger than the sum of its proper divisors (1).

420026767 is an equidigital number, since it uses as much as digits as its factorization.

420026767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 420026767 is about 20494.5545694460. The cubic root of 420026767 is about 748.9031474829.

The spelling of 420026767 in words is "four hundred twenty million, twenty-six thousand, seven hundred sixty-seven".