709868 has 6 divisors (see below), whose sum is σ = 1242276. Its totient is φ = 354932.

The previous prime is 709861. The next prime is 709871. The reversal of 709868 is 868907.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (709861) by changing a digit.

709868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88730 + ... + 88737.

It is an arithmetic number, because the mean of its divisors is an integer number (207046).

2⁷⁰⁹⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

709868 is a deficient number, since it is larger than the sum of its proper divisors (532408).

709868 is a wasteful number, since it uses less digits than its factorization.

709868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177471 (or 177469 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 709868 is about 842.5366460873. The cubic root of 709868 is about 89.2056851196.

The spelling of 709868 in words is "seven hundred nine thousand, eight hundred sixty-eight".