420129967 has 2 divisors, whose sum is σ = 420129968. Its totient is φ = 420129966.

The previous prime is 420129953. The next prime is 420130001. The reversal of 420129967 is 769921024.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420129967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420129947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210064983 + 210064984.

It is an arithmetic number, because the mean of its divisors is an integer number (210064984).

Almost surely, 2^420129967 is an apocalyptic number.

420129967 is a deficient number, since it is larger than the sum of its proper divisors (1).

420129967 is an equidigital number, since it uses as much as digits as its factorization.

420129967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 420129967 is about 20497.0721567740. The cubic root of 420129967 is about 748.9644772853.

The spelling of 420129967 in words is "four hundred twenty million, one hundred twenty-nine thousand, nine hundred sixty-seven".