718921113 has 8 divisors (see below), whose sum is σ = 958912800. Its totient is φ = 479105088.

The previous prime is 718921087. The next prime is 718921121. The reversal of 718921113 is 311129817.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 718921113 - 2⁸ = 718920857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (718921013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34048 + ... + 50961.

It is an arithmetic number, because the mean of its divisors is an integer number (119864100).

Almost surely, 2^718921113 is an apocalyptic number.

It is an amenable number.

718921113 is a deficient number, since it is larger than the sum of its proper divisors (239991687).

718921113 is a wasteful number, since it uses less digits than its factorization.

718921113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87831.

The product of its digits is 3024, while the sum is 33.

The square root of 718921113 is about 26812.7043208998. The cubic root of 718921113 is about 895.8330468755.

The spelling of 718921113 in words is "seven hundred eighteen million, nine hundred twenty-one thousand, one hundred thirteen".