719728 has 10 divisors (see below), whose sum is σ = 1394504. Its totient is φ = 359856.

The previous prime is 719723. The next prime is 719731. The reversal of 719728 is 827917.

It is a junction number, because it is equal to n+sod(n) for n = 719693 and 719702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (719723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22476 + ... + 22507.

2⁷¹⁹⁷²⁸ is an apocalyptic number.

It is an amenable number.

719728 is a deficient number, since it is larger than the sum of its proper divisors (674776).

719728 is a wasteful number, since it uses less digits than its factorization.

719728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44991 (or 44985 counting only the distinct ones).

The product of its digits is 7056, while the sum is 34.

The square root of 719728 is about 848.3678447466. The cubic root of 719728 is about 89.6168070087.

It can be divided in two parts, 7197 and 28, that added together give a square (7225 = 85²).

The spelling of 719728 in words is "seven hundred nineteen thousand, seven hundred twenty-eight".