682881805 has 8 divisors (see below), whose sum is σ = 841605912. Its totient is φ = 531540288.

The previous prime is 682881791. The next prime is 682881809. The reversal of 682881805 is 508188286.

It can be written as a sum of positive squares in 4 ways, for example, as 384905161 + 297976644 = 19619^2 + 17262^2 .

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 682881805 - 2¹³ = 682873613 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 (682881809) 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, 1845442 + ... + 1845811.

It is an arithmetic number, because the mean of its divisors is an integer number (105200739).

Almost surely, 2^682881805 is an apocalyptic number.

It is an amenable number.

682881805 is a deficient number, since it is larger than the sum of its proper divisors (158724107).

682881805 is a wasteful number, since it uses less digits than its factorization.

682881805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3691295.

The product of its (nonzero) digits is 245760, while the sum is 46.

The square root of 682881805 is about 26132.0072899117. The cubic root of 682881805 is about 880.6064195640.

The spelling of 682881805 in words is "six hundred eighty-two million, eight hundred eighty-one thousand, eight hundred five".