789904 has 10 divisors (see below), whose sum is σ = 1530470. Its totient is φ = 394944.

The previous prime is 789883. The next prime is 789941. The reversal of 789904 is 409987.

789904 = T₂₀₆ + T₂₀₇ + ... + T₂₃₇.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 559504 + 230400 = 748^2 + 480^2 .

It is an unprimeable number.

789904 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24669 + ... + 24700.

It is an arithmetic number, because the mean of its divisors is an integer number (153047).

2⁷⁸⁹⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

789904 is a deficient number, since it is larger than the sum of its proper divisors (740566).

789904 is a wasteful number, since it uses less digits than its factorization.

789904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49377 (or 49371 counting only the distinct ones).

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

The square root of 789904 is about 888.7654358716. The cubic root of 789904 is about 92.4396099611.

The spelling of 789904 in words is "seven hundred eighty-nine thousand, nine hundred four".