708391 has 8 divisors (see below), whose sum is σ = 733040. Its totient is φ = 684288.

The previous prime is 708371. The next prime is 708403. The reversal of 708391 is 193807.

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

It is a cyclic number.

It is not a de Polignac number, because 708391 - 2⁵ = 708359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (708311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6445 + ... + 6553.

It is an arithmetic number, because the mean of its divisors is an integer number (91630).

2⁷⁰⁸³⁹¹ is an apocalyptic number.

708391 is a deficient number, since it is larger than the sum of its proper divisors (24649).

708391 is a wasteful number, since it uses less digits than its factorization.

708391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 708391 is about 841.6596699379. The cubic root of 708391 is about 89.1437730067.

The spelling of 708391 in words is "seven hundred eight thousand, three hundred ninety-one".