404396727 has 16 divisors (see below), whose sum is σ = 616561920. Its totient is φ = 230956992.

The previous prime is 404396719. The next prime is 404396743. The reversal of 404396727 is 727693404.

It is not a de Polignac number, because 404396727 - 2³ = 404396719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404396777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45003 + ... + 53235.

It is an arithmetic number, because the mean of its divisors is an integer number (38535120).

Almost surely, 2^404396727 is an apocalyptic number.

404396727 is a deficient number, since it is larger than the sum of its proper divisors (212165193).

404396727 is a wasteful number, since it uses less digits than its factorization.

404396727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10582.

The product of its (nonzero) digits is 254016, while the sum is 42.

The square root of 404396727 is about 20109.6177735928. The cubic root of 404396727 is about 739.4960819307.

The spelling of 404396727 in words is "four hundred four million, three hundred ninety-six thousand, seven hundred twenty-seven".