728847930 has 32 divisors (see below), whose sum is σ = 1750166208. Its totient is φ = 194256000.

The previous prime is 728847929. The next prime is 728847937. The reversal of 728847930 is 39748827.

It is a self number, because there is not a number n which added to its sum of digits gives 728847930.

It is not an unprimeable number, because it can be changed into a prime (728847937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63105 + ... + 73755.

It is an arithmetic number, because the mean of its divisors is an integer number (54692694).

Almost surely, 2^728847930 is an apocalyptic number.

728847930 is an abundant number, since it is smaller than the sum of its proper divisors (1021318278).

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

728847930 is a wasteful number, since it uses less digits than its factorization.

728847930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12942.

The product of its (nonzero) digits is 677376, while the sum is 48.

The square root of 728847930 is about 26997.1837420128. The cubic root of 728847930 is about 899.9374154012.

The spelling of 728847930 in words is "seven hundred twenty-eight million, eight hundred forty-seven thousand, nine hundred thirty".