709538 has 8 divisors (see below), whose sum is σ = 1071900. Its totient is φ = 352240.

The previous prime is 709537. The next prime is 709547. The reversal of 709538 is 835907.

709538 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 485809 + 223729 = 697^2 + 473^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (709531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 893 + ... + 1488.

2⁷⁰⁹⁵³⁸ is an apocalyptic number.

709538 is a deficient number, since it is larger than the sum of its proper divisors (362362).

709538 is a wasteful number, since it uses less digits than its factorization.

709538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 709538 is about 842.3407861430. The cubic root of 709538 is about 89.1918598080.

The spelling of 709538 in words is "seven hundred nine thousand, five hundred thirty-eight".