708823 has 2 divisors, whose sum is σ = 708824. Its totient is φ = 708822.

The previous prime is 708803. The next prime is 708839. The reversal of 708823 is 328807.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 708823 - 2⁹ = 708311 is a prime.

708823 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 708791 and 708800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (708803) by changing a digit.

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, 354411 + 354412.

It is an arithmetic number, because the mean of its divisors is an integer number (354412).

2⁷⁰⁸⁸²³ is an apocalyptic number.

708823 is a deficient number, since it is larger than the sum of its proper divisors (1).

708823 is an equidigital number, since it uses as much as digits as its factorization.

708823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 708823 is about 841.9162666204. The cubic root of 708823 is about 89.1618902537.

The spelling of 708823 in words is "seven hundred eight thousand, eight hundred twenty-three".