728999982 has 24 divisors (see below), whose sum is σ = 1582929504. Its totient is φ = 242472384.

The previous prime is 728999981. The next prime is 728999983. The reversal of 728999982 is 289999827.

It is an interprime number because it is at equal distance from previous prime (728999981) and next prime (728999983).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728999981) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35403 + ... + 52070.

It is an arithmetic number, because the mean of its divisors is an integer number (65955396).

Almost surely, 2^728999982 is an apocalyptic number.

728999982 is an abundant number, since it is smaller than the sum of its proper divisors (853929522).

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

728999982 is a wasteful number, since it uses less digits than its factorization.

728999982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87944 (or 87941 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 63.

The square root of 728999982 is about 26999.9996666667. Note that the first 3 decimals coincide. The cubic root of 728999982 is about 899.9999925926. Note that the first 5 decimals are identical.

The spelling of 728999982 in words is "seven hundred twenty-eight million, nine hundred ninety-nine thousand, nine hundred eighty-two".