420660367 has 2 divisors, whose sum is σ = 420660368. Its totient is φ = 420660366.

The previous prime is 420660353. The next prime is 420660377. The reversal of 420660367 is 763066024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420660367 - 2⁷ = 420660239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420660377) 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, 210330183 + 210330184.

It is an arithmetic number, because the mean of its divisors is an integer number (210330184).

Almost surely, 2^420660367 is an apocalyptic number.

420660367 is a deficient number, since it is larger than the sum of its proper divisors (1).

420660367 is an equidigital number, since it uses as much as digits as its factorization.

420660367 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 420660367 is about 20510.0065090190. The cubic root of 420660367 is about 749.2795255919.

The spelling of 420660367 in words is "four hundred twenty million, six hundred sixty thousand, three hundred sixty-seven".