713509 has 2 divisors, whose sum is σ = 713510. Its totient is φ = 713508.

The previous prime is 713501. The next prime is 713533. The reversal of 713509 is 905317.

713509 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., 664225 + 49284 = 815^2 + 222^2 .

It is a cyclic number.

It is not a de Polignac number, because 713509 - 2³ = 713501 is a prime.

713509 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (713501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 356754 + 356755.

It is an arithmetic number, because the mean of its divisors is an integer number (356755).

2⁷¹³⁵⁰⁹ is an apocalyptic number.

It is an amenable number.

713509 is a deficient number, since it is larger than the sum of its proper divisors (1).

713509 is an equidigital number, since it uses as much as digits as its factorization.

713509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 713509 is about 844.6946193744. The cubic root of 713509 is about 89.3579407348.

The spelling of 713509 in words is "seven hundred thirteen thousand, five hundred nine".