420414667 has 2 divisors, whose sum is σ = 420414668. Its totient is φ = 420414666.

The previous prime is 420414611. The next prime is 420414679. The reversal of 420414667 is 766414024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420414667 is a prime.

It is not a weakly prime, because it can be changed into another prime (420474667) 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, 210207333 + 210207334.

It is an arithmetic number, because the mean of its divisors is an integer number (210207334).

Almost surely, 2^420414667 is an apocalyptic number.

420414667 is a deficient number, since it is larger than the sum of its proper divisors (1).

420414667 is an equidigital number, since it uses as much as digits as its factorization.

420414667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 420414667 is about 20504.0158749451. The cubic root of 420414667 is about 749.1336170409.

The spelling of 420414667 in words is "four hundred twenty million, four hundred fourteen thousand, six hundred sixty-seven".