682755639 has 4 divisors (see below), whose sum is σ = 910340856. Its totient is φ = 455170424.

The previous prime is 682755607. The next prime is 682755653. The reversal of 682755639 is 936557286.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 682755639 - 2⁵ = 682755607 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 682755591 and 682755600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682755659) 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, 113792604 + ... + 113792609.

It is an arithmetic number, because the mean of its divisors is an integer number (227585214).

Almost surely, 2^682755639 is an apocalyptic number.

682755639 is a deficient number, since it is larger than the sum of its proper divisors (227585217).

682755639 is a wasteful number, since it uses less digits than its factorization.

682755639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227585216.

The product of its digits is 2721600, while the sum is 51.

The square root of 682755639 is about 26129.5931656044. The cubic root of 682755639 is about 880.5521840034.

The spelling of 682755639 in words is "six hundred eighty-two million, seven hundred fifty-five thousand, six hundred thirty-nine".