904930 has 16 divisors (see below), whose sum is σ = 1754424. Its totient is φ = 334080.

The previous prime is 904919. The next prime is 904931. The reversal of 904930 is 39409.

It can be written as a sum of positive squares in 4 ways, for example, as 690561 + 214369 = 831^2 + 463^2 .

It is a junction number, because it is equal to n+sod(n) for n = 904895 and 904904.

It is not an unprimeable number, because it can be changed into a prime (904931) by changing a digit.

904930 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3351 + ... + 3610.

2⁹⁰⁴⁹³⁰ is an apocalyptic number.

904930 is a deficient number, since it is larger than the sum of its proper divisors (849494).

904930 is a wasteful number, since it uses less digits than its factorization.

904930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6981.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 904930 is about 951.2780876274. The cubic root of 904930 is about 96.7249087518.

The spelling of 904930 in words is "nine hundred four thousand, nine hundred thirty".