682700861 has 4 divisors (see below), whose sum is σ = 706242300. Its totient is φ = 659159424.

The previous prime is 682700833. The next prime is 682700869. The reversal of 682700861 is 168007286.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 168007286 = 2 ⋅84003643.

It can be written as a sum of positive squares in 2 ways, for example, as 253796761 + 428904100 = 15931^2 + 20710^2 .

It is a cyclic number.

It is not a de Polignac number, because 682700861 - 2⁶ = 682700797 is a prime.

It is a super-2 number, since 2×682700861² = 932160931220282642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682700869) 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, 11770676 + ... + 11770733.

It is an arithmetic number, because the mean of its divisors is an integer number (176560575).

Almost surely, 2^682700861 is an apocalyptic number.

It is an amenable number.

682700861 is a deficient number, since it is larger than the sum of its proper divisors (23541439).

682700861 is a wasteful number, since it uses less digits than its factorization.

682700861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23541438.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 682700861 is about 26128.5449460930. The cubic root of 682700861 is about 880.5286342516.

The spelling of 682700861 in words is "six hundred eighty-two million, seven hundred thousand, eight hundred sixty-one".