708641123 has 4 divisors (see below), whose sum is σ = 709517880. Its totient is φ = 707764368.

The previous prime is 708641117. The next prime is 708641147. The reversal of 708641123 is 321146807.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321146807 = 3719 ⋅86353.

It is a cyclic number.

It is not a de Polignac number, because 708641123 - 2¹⁰ = 708640099 is a prime.

It is a super-2 number, since 2×708641123² = 1004344482413402258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 708641123.

It is not an unprimeable number, because it can be changed into a prime (708641113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437165 + ... + 438782.

It is an arithmetic number, because the mean of its divisors is an integer number (177379470).

Almost surely, 2^708641123 is an apocalyptic number.

708641123 is a deficient number, since it is larger than the sum of its proper divisors (876757).

708641123 is an equidigital number, since it uses as much as digits as its factorization.

708641123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876756.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 708641123 is about 26620.3141040822. The cubic root of 708641123 is about 891.5426358047.

The spelling of 708641123 in words is "seven hundred eight million, six hundred forty-one thousand, one hundred twenty-three".