716428 has 6 divisors (see below), whose sum is σ = 1253756. Its totient is φ = 358212.

The previous prime is 716413. The next prime is 716447. The reversal of 716428 is 824617.

It is a junction number, because it is equal to n+sod(n) for n = 716396 and 716405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89550 + ... + 89557.

2⁷¹⁶⁴²⁸ is an apocalyptic number.

It is an amenable number.

716428 is a deficient number, since it is larger than the sum of its proper divisors (537328).

716428 is a wasteful number, since it uses less digits than its factorization.

716428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179111 (or 179109 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 716428 is about 846.4206991798. The cubic root of 716428 is about 89.4796308316.

The spelling of 716428 in words is "seven hundred sixteen thousand, four hundred twenty-eight".