404063687 has 8 divisors (see below), whose sum is σ = 412555920. Its totient is φ = 395651520.

The previous prime is 404063663. The next prime is 404063711. The reversal of 404063687 is 786360404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (404063663) and next prime (404063711).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404063687 - 2⁸ = 404063431 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 404063687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404063087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9764 + ... + 30057.

It is an arithmetic number, because the mean of its divisors is an integer number (51569490).

Almost surely, 2^404063687 is an apocalyptic number.

404063687 is a deficient number, since it is larger than the sum of its proper divisors (8492233).

404063687 is a wasteful number, since it uses less digits than its factorization.

404063687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40033.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 404063687 is about 20101.3354531484. The cubic root of 404063687 is about 739.2930227416.

The spelling of 404063687 in words is "four hundred four million, sixty-three thousand, six hundred eighty-seven".