728601396 has 24 divisors (see below), whose sum is σ = 1704363360. Its totient is φ = 242253792.

The previous prime is 728601389. The next prime is 728601427. The reversal of 728601396 is 693106827.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71706 + ... + 81233.

It is an arithmetic number, because the mean of its divisors is an integer number (71015140).

Almost surely, 2^728601396 is an apocalyptic number.

It is an amenable number.

728601396 is an abundant number, since it is smaller than the sum of its proper divisors (975761964).

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

728601396 is a wasteful number, since it uses less digits than its factorization.

728601396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153343 (or 153341 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 728601396 is about 26992.6174351433. The cubic root of 728601396 is about 899.8359355260.

The spelling of 728601396 in words is "seven hundred twenty-eight million, six hundred one thousand, three hundred ninety-six".