904487 has 8 divisors (see below), whose sum is σ = 944640. Its totient is φ = 865080.

The previous prime is 904483. The next prime is 904489. The reversal of 904487 is 784409.

It is a happy number.

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 904487 - 2² = 904483 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904483) 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, 4964 + ... + 5142.

It is an arithmetic number, because the mean of its divisors is an integer number (118080).

2⁹⁰⁴⁴⁸⁷ is an apocalyptic number.

904487 is a deficient number, since it is larger than the sum of its proper divisors (40153).

904487 is a wasteful number, since it uses less digits than its factorization.

904487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 904487 is about 951.0452144877. The cubic root of 904487 is about 96.7091225846.

The spelling of 904487 in words is "nine hundred four thousand, four hundred eighty-seven".