708860681 has 4 divisors (see below), whose sum is σ = 715364100. Its totient is φ = 702357264.

The previous prime is 708860657. The next prime is 708860699. The reversal of 708860681 is 186068807.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 570445456 + 138415225 = 23884^2 + 11765^2 .

It is a cyclic number.

It is not a de Polignac number, because 708860681 - 2¹⁸ = 708598537 is a prime.

It is a super-2 number, since 2×708860681² = 1004966930135567522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (708860641) 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 in 3 ways as a sum of consecutive naturals, for example, 3251546 + ... + 3251763.

It is an arithmetic number, because the mean of its divisors is an integer number (178841025).

Almost surely, 2^708860681 is an apocalyptic number.

It is an amenable number.

708860681 is a deficient number, since it is larger than the sum of its proper divisors (6503419).

708860681 is a wasteful number, since it uses less digits than its factorization.

708860681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6503418.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 708860681 is about 26624.4376654231. The cubic root of 708860681 is about 891.6347017316.

The spelling of 708860681 in words is "seven hundred eight million, eight hundred sixty thousand, six hundred eighty-one".