682640611 has 4 divisors (see below), whose sum is σ = 699290424. Its totient is φ = 665990800.

The previous prime is 682640603. The next prime is 682640617. The reversal of 682640611 is 116046286.

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 682640611 - 2³ = 682640603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (682640617) 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, 8324845 + ... + 8324926.

It is an arithmetic number, because the mean of its divisors is an integer number (174822606).

Almost surely, 2^682640611 is an apocalyptic number.

682640611 is a deficient number, since it is larger than the sum of its proper divisors (16649813).

682640611 is a wasteful number, since it uses less digits than its factorization.

682640611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16649812.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 682640611 is about 26127.3919670525. The cubic root of 682640611 is about 880.5027305633.

Adding to 682640611 its reverse (116046286), we get a palindrome (798686897).

The spelling of 682640611 in words is "six hundred eighty-two million, six hundred forty thousand, six hundred eleven".