709864 has 16 divisors (see below), whose sum is σ = 1347300. Its totient is φ = 350592.

The previous prime is 709861. The next prime is 709871. The reversal of 709864 is 468907.

709864 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 708964 + 900 = 842^2 + 30^2 .

It is not an unprimeable number, because it can be changed into a prime (709861) 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, 214 + ... + 1210.

2⁷⁰⁹⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

709864 is a deficient number, since it is larger than the sum of its proper divisors (637436).

709864 is a wasteful number, since it uses less digits than its factorization.

709864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1088 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 709864 is about 842.5342722999. The cubic root of 709864 is about 89.2055175658.

The spelling of 709864 in words is "seven hundred nine thousand, eight hundred sixty-four".