404415967 has 2 divisors, whose sum is σ = 404415968. Its totient is φ = 404415966.

The previous prime is 404415961. The next prime is 404416021. The reversal of 404415967 is 769514404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404415967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404415961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202207983 + 202207984.

It is an arithmetic number, because the mean of its divisors is an integer number (202207984).

Almost surely, 2^404415967 is an apocalyptic number.

404415967 is a deficient number, since it is larger than the sum of its proper divisors (1).

404415967 is an equidigital number, since it uses as much as digits as its factorization.

404415967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 404415967 is about 20110.0961459661. The cubic root of 404415967 is about 739.5078094234.

The spelling of 404415967 in words is "four hundred four million, four hundred fifteen thousand, nine hundred sixty-seven".