123704628 has 12 divisors (see below), whose sum is σ = 288644160. Its totient is φ = 41234872.

The previous prime is 123704621. The next prime is 123704641. The reversal of 123704628 is 826407321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123704621) 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, 5154348 + ... + 5154371.

It is an arithmetic number, because the mean of its divisors is an integer number (24053680).

Almost surely, 2^123704628 is an apocalyptic number.

It is an amenable number.

123704628 is an abundant number, since it is smaller than the sum of its proper divisors (164939532).

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

123704628 is a wasteful number, since it uses less digits than its factorization.

123704628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10308726 (or 10308724 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 123704628 is about 11122.2582239400. The cubic root of 123704628 is about 498.2668365639.

The spelling of 123704628 in words is "one hundred twenty-three million, seven hundred four thousand, six hundred twenty-eight".