718634 has 12 divisors (see below), whose sum is σ = 1254114. Its totient is φ = 307944.

The previous prime is 718633. The next prime is 718657. The reversal of 718634 is 436817.

It can be written as a sum of positive squares in only one way, i.e., 717409 + 1225 = 847^2 + 35^2 .

It is a junction number, because it is equal to n+sod(n) for n = 718597 and 718606.

It is not an unprimeable number, because it can be changed into a prime (718633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3569 + ... + 3764.

2⁷¹⁸⁶³⁴ is an apocalyptic number.

718634 is a deficient number, since it is larger than the sum of its proper divisors (535480).

718634 is a wasteful number, since it uses less digits than its factorization.

718634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7349 (or 7342 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 718634 is about 847.7228320625. The cubic root of 718634 is about 89.5713775764.

The spelling of 718634 in words is "seven hundred eighteen thousand, six hundred thirty-four".