718408 has 16 divisors (see below), whose sum is σ = 1363500. Its totient is φ = 354816.

The previous prime is 718391. The next prime is 718411. The reversal of 718408 is 804817.

718408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 669124 + 49284 = 818^2 + 222^2 .

It is a super-2 number, since 2×718408² = 1032220108928, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208 + ... + 1216.

2⁷¹⁸⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

718408 is a deficient number, since it is larger than the sum of its proper divisors (645092).

718408 is a wasteful number, since it uses less digits than its factorization.

718408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 718408 is about 847.5895232953. The cubic root of 718408 is about 89.5619869576.

The spelling of 718408 in words is "seven hundred eighteen thousand, four hundred eight".