701509 has 2 divisors, whose sum is σ = 701510. Its totient is φ = 701508.

The previous prime is 701507. The next prime is 701527. The reversal of 701509 is 905107.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 429025 + 272484 = 655^2 + 522^2 .

It is a cyclic number.

It is not a de Polignac number, because 701509 - 2¹ = 701507 is a prime.

It is a super-2 number, since 2×701509² = 984229754162, which contains 22 as substring.

Together with 701507, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 701509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (701507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 350754 + 350755.

It is an arithmetic number, because the mean of its divisors is an integer number (350755).

2⁷⁰¹⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

701509 is a deficient number, since it is larger than the sum of its proper divisors (1).

701509 is an equidigital number, since it uses as much as digits as its factorization.

701509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315, while the sum is 22.

The square root of 701509 is about 837.5613410372. The cubic root of 701509 is about 88.8541566273.

The spelling of 701509 in words is "seven hundred one thousand, five hundred nine".