904679 has 2 divisors, whose sum is σ = 904680. Its totient is φ = 904678.

The previous prime is 904667. The next prime is 904681. The reversal of 904679 is 976409.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 904679 - 2⁴ = 904663 is a prime.

Together with 904681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (904619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452339 + 452340.

It is an arithmetic number, because the mean of its divisors is an integer number (452340).

2⁹⁰⁴⁶⁷⁹ is an apocalyptic number.

904679 is a deficient number, since it is larger than the sum of its proper divisors (1).

904679 is an equidigital number, since it uses as much as digits as its factorization.

904679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 904679 is about 951.1461507045. The cubic root of 904679 is about 96.7159650776.

The spelling of 904679 in words is "nine hundred four thousand, six hundred seventy-nine".