709216 has 24 divisors (see below), whose sum is σ = 1436400. Its totient is φ = 344448.

The previous prime is 709211. The next prime is 709217. The reversal of 709216 is 612907.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709211) 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, 885 + ... + 1483.

It is an arithmetic number, because the mean of its divisors is an integer number (59850).

2⁷⁰⁹²¹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 709216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (718200).

709216 is an abundant number, since it is smaller than the sum of its proper divisors (727184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

709216 is a wasteful number, since it uses less digits than its factorization.

709216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 709216 is about 842.1496304102. The cubic root of 709216 is about 89.1783655228.

The spelling of 709216 in words is "seven hundred nine thousand, two hundred sixteen".