1404087 has 4 divisors (see below), whose sum is σ = 1872120. Its totient is φ = 936056.

The previous prime is 1404071. The next prime is 1404107. The reversal of 1404087 is 7804041.

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 1404087 - 2⁴ = 1404071 is a prime.

It is a D-number.

1404087 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1404287) 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 3 ways as a sum of consecutive naturals, for example, 234012 + ... + 234017.

It is an arithmetic number, because the mean of its divisors is an integer number (468030).

2^1404087 is an apocalyptic number.

1404087 is a deficient number, since it is larger than the sum of its proper divisors (468033).

1404087 is an equidigital number, since it uses as much as digits as its factorization.

1404087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468032.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 1404087 is about 1184.9417707212. The cubic root of 1404087 is about 111.9776475376.

The spelling of 1404087 in words is "one million, four hundred four thousand, eighty-seven".