904879 has 2 divisors, whose sum is σ = 904880. Its totient is φ = 904878.

The previous prime is 904873. The next prime is 904901. The reversal of 904879 is 978409.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 904879 - 2⁵ = 904847 is a prime.

It is a Chen prime.

904879 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (904873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452439 + 452440.

It is an arithmetic number, because the mean of its divisors is an integer number (452440).

2⁹⁰⁴⁸⁷⁹ is an apocalyptic number.

904879 is a deficient number, since it is larger than the sum of its proper divisors (1).

904879 is an equidigital number, since it uses as much as digits as its factorization.

904879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 904879 is about 951.2512812081. The cubic root of 904879 is about 96.7230916451.

The spelling of 904879 in words is "nine hundred four thousand, eight hundred seventy-nine".