718901 has 2 divisors, whose sum is σ = 718902. Its totient is φ = 718900.

The previous prime is 718897. The next prime is 718919. The reversal of 718901 is 109817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 442225 + 276676 = 665^2 + 526^2 .

It is a cyclic number.

It is not a de Polignac number, because 718901 - 2² = 718897 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (718931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359450 + 359451.

It is an arithmetic number, because the mean of its divisors is an integer number (359451).

2⁷¹⁸⁹⁰¹ is an apocalyptic number.

It is an amenable number.

718901 is a deficient number, since it is larger than the sum of its proper divisors (1).

718901 is an equidigital number, since it uses as much as digits as its factorization.

718901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 718901 is about 847.8802981553. The cubic root of 718901 is about 89.5824692663.

The spelling of 718901 in words is "seven hundred eighteen thousand, nine hundred one".