904047 has 4 divisors (see below), whose sum is σ = 1205400. Its totient is φ = 602696.

The previous prime is 904027. The next prime is 904049. The reversal of 904047 is 740409.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 740409 = 3 ⋅246803.

It is a cyclic number.

It is not a de Polignac number, because 904047 - 2⁷ = 903919 is a prime.

It is a D-number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904049) 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, 150672 + ... + 150677.

It is an arithmetic number, because the mean of its divisors is an integer number (301350).

2⁹⁰⁴⁰⁴⁷ is an apocalyptic number.

904047 is a deficient number, since it is larger than the sum of its proper divisors (301353).

904047 is a wasteful number, since it uses less digits than its factorization.

904047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301352.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 904047 is about 950.8138619099. The cubic root of 904047 is about 96.6934382185.

The spelling of 904047 in words is "nine hundred four thousand, forty-seven".