728165854 has 16 divisors (see below), whose sum is σ = 1179092880. Its totient is φ = 335269440.

The previous prime is 728165839. The next prime is 728165857. The reversal of 728165854 is 458561827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728165857) 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, 22527 + ... + 44314.

It is an arithmetic number, because the mean of its divisors is an integer number (73693305).

Almost surely, 2^728165854 is an apocalyptic number.

728165854 is a deficient number, since it is larger than the sum of its proper divisors (450927026).

728165854 is a wasteful number, since it uses less digits than its factorization.

728165854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67275.

The product of its digits is 537600, while the sum is 46.

The square root of 728165854 is about 26984.5484305371. The cubic root of 728165854 is about 899.6565990309.

The spelling of 728165854 in words is "seven hundred twenty-eight million, one hundred sixty-five thousand, eight hundred fifty-four".