904066 has 4 divisors (see below), whose sum is σ = 1356102. Its totient is φ = 452032.

The previous prime is 904049. The next prime is 904067. The reversal of 904066 is 660409.

904066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 801025 + 103041 = 895^2 + 321^2 .

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 904066.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (904067) by changing a digit.

904066 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 as a sum of consecutive naturals, namely, 226015 + ... + 226018.

2⁹⁰⁴⁰⁶⁶ is an apocalyptic number.

904066 is a deficient number, since it is larger than the sum of its proper divisors (452036).

904066 is a wasteful number, since it uses less digits than its factorization.

904066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452035.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 904066 is about 950.8238532978. The cubic root of 904066 is about 96.6941156031.

It can be divided in two parts, 90 and 4066, that multiplied together give a triangular number (365940 = T₈₅₅).

The spelling of 904066 in words is "nine hundred four thousand, sixty-six".