420846367 has 2 divisors, whose sum is σ = 420846368. Its totient is φ = 420846366.

The previous prime is 420846337. The next prime is 420846389. The reversal of 420846367 is 763648024.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420846367 is a prime.

It is a super-2 number, since 2×420846367² = 354223329234197378, which contains 22 as substring.

It is equal to p_22387189 and since 420846367 and 22387189 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420846317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210423183 + 210423184.

It is an arithmetic number, because the mean of its divisors is an integer number (210423184).

Almost surely, 2^420846367 is an apocalyptic number.

420846367 is a deficient number, since it is larger than the sum of its proper divisors (1).

420846367 is an equidigital number, since it uses as much as digits as its factorization.

420846367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 420846367 is about 20514.5403799354. The cubic root of 420846367 is about 749.3899436132.

The spelling of 420846367 in words is "four hundred twenty million, eight hundred forty-six thousand, three hundred sixty-seven".