709634 has 8 divisors (see below), whose sum is σ = 1070400. Its totient is φ = 352836.

The previous prime is 709609. The next prime is 709649. The reversal of 709634 is 436907.

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

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 709597 and 709606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494 + ... + 1289.

It is an arithmetic number, because the mean of its divisors is an integer number (133800).

2⁷⁰⁹⁶³⁴ is an apocalyptic number.

709634 is a deficient number, since it is larger than the sum of its proper divisors (360766).

709634 is a wasteful number, since it uses less digits than its factorization.

709634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 709634 is about 842.3977682781. The cubic root of 709634 is about 89.1958821589.

The spelling of 709634 in words is "seven hundred nine thousand, six hundred thirty-four".