715628 has 6 divisors (see below), whose sum is σ = 1252356. Its totient is φ = 357812.

The previous prime is 715621. The next prime is 715639. The reversal of 715628 is 826517.

It is a self number, because there is not a number n which added to its sum of digits gives 715628.

It is not an unprimeable number, because it can be changed into a prime (715621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89450 + ... + 89457.

It is an arithmetic number, because the mean of its divisors is an integer number (208726).

2⁷¹⁵⁶²⁸ is an apocalyptic number.

It is an amenable number.

715628 is a deficient number, since it is larger than the sum of its proper divisors (536728).

715628 is a wasteful number, since it uses less digits than its factorization.

715628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178911 (or 178909 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 715628 is about 845.9479889449. The cubic root of 715628 is about 89.4463125890.

Subtracting 715628 from its reverse (826517), we obtain a square (110889 = 333²).

The spelling of 715628 in words is "seven hundred fifteen thousand, six hundred twenty-eight".