728447002 has 4 divisors (see below), whose sum is σ = 1092670506. Its totient is φ = 364223500.

The previous prime is 728446997. The next prime is 728447017. The reversal of 728447002 is 200744827.

728447002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 712836601 + 15610401 = 26699^2 + 3951^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182111749 + ... + 182111752.

Almost surely, 2^728447002 is an apocalyptic number.

728447002 is a deficient number, since it is larger than the sum of its proper divisors (364223504).

728447002 is a wasteful number, since it uses less digits than its factorization.

728447002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364223503.

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 728447002 is about 26989.7573534850. The cubic root of 728447002 is about 899.7723712394.

The spelling of 728447002 in words is "seven hundred twenty-eight million, four hundred forty-seven thousand, two".