728673016 has 32 divisors (see below), whose sum is σ = 1379064960. Its totient is φ = 360940032.

The previous prime is 728672983. The next prime is 728673017. The reversal of 728673016 is 610376827.

It is a self number, because there is not a number n which added to its sum of digits gives 728673016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728673017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 414796 + ... + 416548.

It is an arithmetic number, because the mean of its divisors is an integer number (43095780).

Almost surely, 2^728673016 is an apocalyptic number.

It is an amenable number.

728673016 is a deficient number, since it is larger than the sum of its proper divisors (650391944).

728673016 is a wasteful number, since it uses less digits than its factorization.

728673016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215 (or 2211 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 728673016 is about 26993.9440615854. The cubic root of 728673016 is about 899.8654185595.

The spelling of 728673016 in words is "seven hundred twenty-eight million, six hundred seventy-three thousand, sixteen".