123456804 has 12 divisors (see below), whose sum is σ = 288065904. Its totient is φ = 41152264.

The previous prime is 123456803. The next prime is 123456811. The reversal of 123456804 is 408654321.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (123456803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5144022 + ... + 5144045.

It is an arithmetic number, because the mean of its divisors is an integer number (24005492).

Almost surely, 2^123456804 is an apocalyptic number.

It is an amenable number.

123456804 is an abundant number, since it is smaller than the sum of its proper divisors (164609100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123456804 is a wasteful number, since it uses less digits than its factorization.

123456804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10288074 (or 10288072 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 123456804 is about 11111.1117355555. Note that the first 3 decimals coincide. The cubic root of 123456804 is about 497.9338793845.

The spelling of 123456804 in words is "one hundred twenty-three million, four hundred fifty-six thousand, eight hundred four".