718982993 has 8 divisors (see below), whose sum is σ = 744094080. Its totient is φ = 693893200.

The previous prime is 718982939. The next prime is 718983061. The reversal of 718982993 is 399289817.

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

It is a cyclic number.

It is not a de Polignac number, because 718982993 - 2¹⁴ = 718966609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (718982893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96968 + ... + 104118.

It is an arithmetic number, because the mean of its divisors is an integer number (93011760).

Almost surely, 2^718982993 is an apocalyptic number.

It is an amenable number.

718982993 is a deficient number, since it is larger than the sum of its proper divisors (25111087).

718982993 is a wasteful number, since it uses less digits than its factorization.

718982993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10647.

The product of its digits is 1959552, while the sum is 56.

The square root of 718982993 is about 26813.8582266708. The cubic root of 718982993 is about 895.8587486099.

The spelling of 718982993 in words is "seven hundred eighteen million, nine hundred eighty-two thousand, nine hundred ninety-three".