728005092 has 12 divisors (see below), whose sum is σ = 1698678576. Its totient is φ = 242668360.

The previous prime is 728005073. The next prime is 728005097. The reversal of 728005092 is 290500827.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (728005097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30333534 + ... + 30333557.

It is an arithmetic number, because the mean of its divisors is an integer number (141556548).

Almost surely, 2^728005092 is an apocalyptic number.

It is an amenable number.

728005092 is an abundant number, since it is smaller than the sum of its proper divisors (970673484).

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

728005092 is a wasteful number, since it uses less digits than its factorization.

728005092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60667098 (or 60667096 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 728005092 is about 26981.5694873371. The cubic root of 728005092 is about 899.5903864419.

The spelling of 728005092 in words is "seven hundred twenty-eight million, five thousand, ninety-two".