404125663 has 4 divisors (see below), whose sum is σ = 421696368. Its totient is φ = 386554960.

The previous prime is 404125661. The next prime is 404125669. The reversal of 404125663 is 366521404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404125663 - 2¹ = 404125661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404125661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8785318 + ... + 8785363.

It is an arithmetic number, because the mean of its divisors is an integer number (105424092).

Almost surely, 2^404125663 is an apocalyptic number.

404125663 is a deficient number, since it is larger than the sum of its proper divisors (17570705).

404125663 is a wasteful number, since it uses less digits than its factorization.

404125663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17570704.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 404125663 is about 20102.8769831584. The cubic root of 404125663 is about 739.3308188313.

The spelling of 404125663 in words is "four hundred four million, one hundred twenty-five thousand, six hundred sixty-three".