718423973 has 2 divisors, whose sum is σ = 718423974. Its totient is φ = 718423972.

The previous prime is 718423969. The next prime is 718424011. The reversal of 718423973 is 379324817.

718423973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 634939204 + 83484769 = 25198^2 + 9137^2 .

It is a cyclic number.

It is not a de Polignac number, because 718423973 - 2² = 718423969 is a prime.

It is a super-2 number, since 2×718423973² = 1032266009962209458, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (718423903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359211986 + 359211987.

It is an arithmetic number, because the mean of its divisors is an integer number (359211987).

Almost surely, 2^718423973 is an apocalyptic number.

It is an amenable number.

718423973 is a deficient number, since it is larger than the sum of its proper divisors (1).

718423973 is an equidigital number, since it uses as much as digits as its factorization.

718423973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 718423973 is about 26803.4321123247. The cubic root of 718423973 is about 895.6265072298.

The spelling of 718423973 in words is "seven hundred eighteen million, four hundred twenty-three thousand, nine hundred seventy-three".