728608654 has 8 divisors (see below), whose sum is σ = 1093028328. Its totient is φ = 364265880.

The previous prime is 728608631. The next prime is 728608669. The reversal of 728608654 is 456806827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23104 + ... + 44620.

It is an arithmetic number, because the mean of its divisors is an integer number (136628541).

Almost surely, 2^728608654 is an apocalyptic number.

728608654 is a deficient number, since it is larger than the sum of its proper divisors (364419674).

728608654 is a wasteful number, since it uses less digits than its factorization.

728608654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38450.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 728608654 is about 26992.7518789767. The cubic root of 728608654 is about 899.8389234366.

The spelling of 728608654 in words is "seven hundred twenty-eight million, six hundred eight thousand, six hundred fifty-four".