682856399 has 4 divisors (see below), whose sum is σ = 695740536. Its totient is φ = 669972264.

The previous prime is 682856341. The next prime is 682856441. The reversal of 682856399 is 993658286.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-682856399 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 (682856099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6441989 + ... + 6442094.

It is an arithmetic number, because the mean of its divisors is an integer number (173935134).

Almost surely, 2^682856399 is an apocalyptic number.

682856399 is a deficient number, since it is larger than the sum of its proper divisors (12884137).

682856399 is a wasteful number, since it uses less digits than its factorization.

682856399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12884136.

The product of its digits is 5598720, while the sum is 56.

The square root of 682856399 is about 26131.5211765408. The cubic root of 682856399 is about 880.5954987067.

The spelling of 682856399 in words is "six hundred eighty-two million, eight hundred fifty-six thousand, three hundred ninety-nine".