728839884 has 48 divisors (see below), whose sum is σ = 1779599360. Its totient is φ = 231880320.

The previous prime is 728839883. The next prime is 728839897. The reversal of 728839884 is 488938827.

It is not an unprimeable number, because it can be changed into a prime (728839883) 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, 13737 + ... + 40575.

Almost surely, 2^728839884 is an apocalyptic number.

It is an amenable number.

728839884 is an abundant number, since it is smaller than the sum of its proper divisors (1050759476).

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

728839884 is a wasteful number, since it uses less digits than its factorization.

728839884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26950 (or 26948 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 57.

The square root of 728839884 is about 26997.0347260583. The cubic root of 728839884 is about 899.9341038173.

The spelling of 728839884 in words is "seven hundred twenty-eight million, eight hundred thirty-nine thousand, eight hundred eighty-four".