1404663 has 8 divisors (see below), whose sum is σ = 2017008. Its totient is φ = 864384.

The previous prime is 1404653. The next prime is 1404671. The reversal of 1404663 is 3664041.

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

It is not a de Polignac number, because 1404663 - 2¹⁴ = 1388279 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17970 + ... + 18047.

It is an arithmetic number, because the mean of its divisors is an integer number (252126).

2^1404663 is an apocalyptic number.

1404663 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1404663 is a deficient number, since it is larger than the sum of its proper divisors (612345).

1404663 is a wasteful number, since it uses less digits than its factorization.

1404663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36033.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1404663 is about 1185.1847957175. The cubic root of 1404663 is about 111.9929576780.

The spelling of 1404663 in words is "one million, four hundred four thousand, six hundred sixty-three".