682143817 has 4 divisors (see below), whose sum is σ = 692325136. Its totient is φ = 671962500.

The previous prime is 682143769. The next prime is 682143827. The reversal of 682143817 is 718341286.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 682143817 - 2⁷ = 682143689 is a prime.

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 682143817.

It is not an unprimeable number, because it can be changed into a prime (682143827) 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, 5090559 + ... + 5090692.

It is an arithmetic number, because the mean of its divisors is an integer number (173081284).

Almost surely, 2^682143817 is an apocalyptic number.

682143817 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

682143817 is a deficient number, since it is larger than the sum of its proper divisors (10181319).

682143817 is a wasteful number, since it uses less digits than its factorization.

682143817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10181318.

The product of its digits is 64512, while the sum is 40.

The square root of 682143817 is about 26117.8830880299. The cubic root of 682143817 is about 880.2890824529.

The spelling of 682143817 in words is "six hundred eighty-two million, one hundred forty-three thousand, eight hundred seventeen".