728702 has 8 divisors (see below), whose sum is σ = 1177176. Its totient is φ = 336312.

The previous prime is 728701. The next prime is 728713. The reversal of 728702 is 207827.

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

It is a Harshad number since it is a multiple of its sum of digits (26), and also a Moran number because the ratio is a prime number: 28027 = 728702 / (7 + 2 + 8 + 7 + 0 + 2).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 728702.

It is not an unprimeable number, because it can be changed into a prime (728701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13988 + ... + 14039.

It is an arithmetic number, because the mean of its divisors is an integer number (147147).

2⁷²⁸⁷⁰² is an apocalyptic number.

728702 is a deficient number, since it is larger than the sum of its proper divisors (448474).

728702 is a wasteful number, since it uses less digits than its factorization.

728702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28042.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 728702 is about 853.6404395294. The cubic root of 728702 is about 89.9877349541.

The spelling of 728702 in words is "seven hundred twenty-eight thousand, seven hundred two".