718671 has 4 divisors (see below), whose sum is σ = 958232. Its totient is φ = 479112.

The previous prime is 718661. The next prime is 718691. The reversal of 718671 is 176817.

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

It is not a de Polignac number, because 718671 - 2¹⁷ = 587599 is a prime.

It is a D-number.

It is a Duffinian number.

718671 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119776 + ... + 119781.

It is an arithmetic number, because the mean of its divisors is an integer number (239558).

2⁷¹⁸⁶⁷¹ is an apocalyptic number.

718671 is a deficient number, since it is larger than the sum of its proper divisors (239561).

718671 is a wasteful number, since it uses less digits than its factorization.

718671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239560.

The product of its digits is 2352, while the sum is 30.

The square root of 718671 is about 847.7446549522. The cubic root of 718671 is about 89.5729147910.

The spelling of 718671 in words is "seven hundred eighteen thousand, six hundred seventy-one".