716218 has 4 divisors (see below), whose sum is σ = 1074330. Its totient is φ = 358108.

The previous prime is 716173. The next prime is 716249. The reversal of 716218 is 812617.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 537289 + 178929 = 733^2 + 423^2 .

It is a junction number, because it is equal to n+sod(n) for n = 716192 and 716201.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 179053 + ... + 179056.

2⁷¹⁶²¹⁸ is an apocalyptic number.

716218 is a deficient number, since it is larger than the sum of its proper divisors (358112).

716218 is a wasteful number, since it uses less digits than its factorization.

716218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358111.

The product of its digits is 672, while the sum is 25.

The square root of 716218 is about 846.2966383013. The cubic root of 716218 is about 89.4708871948.

It can be divided in two parts, 7 and 16218, that multiplied together give a triangular number (113526 = T₄₇₆).

The spelling of 716218 in words is "seven hundred sixteen thousand, two hundred eighteen".