904171 has 4 divisors (see below), whose sum is σ = 907192. Its totient is φ = 901152.

The previous prime is 904157. The next prime is 904181. The reversal of 904171 is 171409.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-904171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (904121) 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, 1005 + ... + 1678.

It is an arithmetic number, because the mean of its divisors is an integer number (226798).

2⁹⁰⁴¹⁷¹ is an apocalyptic number.

904171 is a deficient number, since it is larger than the sum of its proper divisors (3021).

904171 is a wasteful number, since it uses less digits than its factorization.

904171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 904171 is about 950.8790669691. The cubic root of 904171 is about 96.6978588730.

The spelling of 904171 in words is "nine hundred four thousand, one hundred seventy-one".