404683893 has 12 divisors (see below), whose sum is σ = 604700460. Its totient is φ = 260486016.

The previous prime is 404683841. The next prime is 404683897. The reversal of 404683893 is 398386404.

It can be written as a sum of positive squares in 2 ways, for example, as 100460529 + 304223364 = 10023^2 + 17442^2 .

It is not a de Polignac number, because 404683893 - 2²⁰ = 403635317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404683897) 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 in 11 ways as a sum of consecutive naturals, for example, 774996 + ... + 775517.

It is an arithmetic number, because the mean of its divisors is an integer number (50391705).

Almost surely, 2^404683893 is an apocalyptic number.

It is an amenable number.

404683893 is a deficient number, since it is larger than the sum of its proper divisors (200016567).

404683893 is a wasteful number, since it uses less digits than its factorization.

404683893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550548 (or 1550545 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 404683893 is about 20116.7565228592. The cubic root of 404683893 is about 739.6710816044.

The spelling of 404683893 in words is "four hundred four million, six hundred eighty-three thousand, eight hundred ninety-three".