728412125 has 64 divisors (see below), whose sum is σ = 1075576320. Its totient is φ = 482227200.

The previous prime is 728412121. The next prime is 728412127. The reversal of 728412125 is 521214827.

It is not a de Polignac number, because 728412125 - 2² = 728412121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 728412091 and 728412100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728412121) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5240306 + ... + 5240444.

It is an arithmetic number, because the mean of its divisors is an integer number (16805880).

Almost surely, 2^728412125 is an apocalyptic number.

It is an amenable number.

728412125 is a deficient number, since it is larger than the sum of its proper divisors (347164195).

728412125 is a wasteful number, since it uses less digits than its factorization.

728412125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 317 counting only the distinct ones).

The product of its digits is 8960, while the sum is 32.

The square root of 728412125 is about 26989.1112302721. Note that the first 3 decimals coincide. The cubic root of 728412125 is about 899.7580110724.

The spelling of 728412125 in words is "seven hundred twenty-eight million, four hundred twelve thousand, one hundred twenty-five".