404020699 has 2 divisors, whose sum is σ = 404020700. Its totient is φ = 404020698.

The previous prime is 404020651. The next prime is 404020703. The reversal of 404020699 is 996020404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404020699 - 2⁷ = 404020571 is a prime.

It is not a weakly prime, because it can be changed into another prime (404020399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202010349 + 202010350.

It is an arithmetic number, because the mean of its divisors is an integer number (202010350).

Almost surely, 2^404020699 is an apocalyptic number.

404020699 is a deficient number, since it is larger than the sum of its proper divisors (1).

404020699 is an equidigital number, since it uses as much as digits as its factorization.

404020699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 404020699 is about 20100.2661425166. The cubic root of 404020699 is about 739.2668042216.

The spelling of 404020699 in words is "four hundred four million, twenty thousand, six hundred ninety-nine".