709537 has 2 divisors, whose sum is σ = 709538. Its totient is φ = 709536.

The previous prime is 709531. The next prime is 709547. The reversal of 709537 is 735907.

709537 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., 665856 + 43681 = 816^2 + 209^2 .

It is a cyclic number.

It is not a de Polignac number, because 709537 - 2⁷ = 709409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 709499 and 709508.

It is not a weakly prime, because it can be changed into another prime (709531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354768 + 354769.

It is an arithmetic number, because the mean of its divisors is an integer number (354769).

2⁷⁰⁹⁵³⁷ is an apocalyptic number.

It is an amenable number.

709537 is a deficient number, since it is larger than the sum of its proper divisors (1).

709537 is an equidigital number, since it uses as much as digits as its factorization.

709537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6615, while the sum is 31.

The square root of 709537 is about 842.3401925588. The cubic root of 709537 is about 89.1918179066.

It can be divided in two parts, 70 and 9537, that multiplied together give a triangular number (667590 = T₁₁₅₅).

The spelling of 709537 in words is "seven hundred nine thousand, five hundred thirty-seven".