904397 has 8 divisors (see below), whose sum is σ = 988344. Its totient is φ = 822528.

The previous prime is 904369. The next prime is 904399. The reversal of 904397 is 793409.

It is a happy number.

904397 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 4 ways, for example, as 32041 + 872356 = 179^2 + 934^2 .

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 904397 - 2¹⁸ = 642253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904399) 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, 473 + ... + 1425.

It is an arithmetic number, because the mean of its divisors is an integer number (123543).

2⁹⁰⁴³⁹⁷ is an apocalyptic number.

It is an amenable number.

904397 is a deficient number, since it is larger than the sum of its proper divisors (83947).

904397 is a wasteful number, since it uses less digits than its factorization.

904397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 904397 is about 950.9978969483. The cubic root of 904397 is about 96.7059148327.

The spelling of 904397 in words is "nine hundred four thousand, three hundred ninety-seven".