718671872 has 52 divisors (see below), whose sum is σ = 1521855036. Its totient is φ = 338165760.

The previous prime is 718671859. The next prime is 718671887. The reversal of 718671872 is 278176817.

It can be written as a sum of positive squares in 2 ways, for example, as 484704256 + 233967616 = 22016^2 + 15296^2 .

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, 64472 + ... + 74792.

It is an arithmetic number, because the mean of its divisors is an integer number (29266443).

Almost surely, 2^718671872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718671872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760927518).

718671872 is an abundant number, since it is smaller than the sum of its proper divisors (803183164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

718671872 is a wasteful number, since it uses less digits than its factorization.

718671872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10362 (or 10340 counting only the distinct ones).

The product of its digits is 263424, while the sum is 47.

The square root of 718671872 is about 26808.0561025972. The cubic root of 718671872 is about 895.7295101879.

The spelling of 718671872 in words is "seven hundred eighteen million, six hundred seventy-one thousand, eight hundred seventy-two".