718973 has 2 divisors, whose sum is σ = 718974. Its totient is φ = 718972.

The previous prime is 718943. The next prime is 718999. The reversal of 718973 is 379817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 573049 + 145924 = 757^2 + 382^2 .

It is an emirp because it is prime and its reverse (379817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 718973 - 2⁸ = 718717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (718943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359486 + 359487.

It is an arithmetic number, because the mean of its divisors is an integer number (359487).

2⁷¹⁸⁹⁷³ is an apocalyptic number.

It is an amenable number.

718973 is a deficient number, since it is larger than the sum of its proper divisors (1).

718973 is an equidigital number, since it uses as much as digits as its factorization.

718973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 35.

The square root of 718973 is about 847.9227559159. The cubic root of 718973 is about 89.5854598137.

The spelling of 718973 in words is "seven hundred eighteen thousand, nine hundred seventy-three".