682136787 has 4 divisors (see below), whose sum is σ = 909515720. Its totient is φ = 454757856.

The previous prime is 682136743. The next prime is 682136839. The reversal of 682136787 is 787631286.

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

It is not a de Polignac number, because 682136787 - 2⁶ = 682136723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (682136687) 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, 113689462 + ... + 113689467.

It is an arithmetic number, because the mean of its divisors is an integer number (227378930).

Almost surely, 2^682136787 is an apocalyptic number.

682136787 is a deficient number, since it is larger than the sum of its proper divisors (227378933).

682136787 is a wasteful number, since it uses less digits than its factorization.

682136787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227378932.

The product of its digits is 677376, while the sum is 48.

The square root of 682136787 is about 26117.7485055661. The cubic root of 682136787 is about 880.2860584310.

The spelling of 682136787 in words is "six hundred eighty-two million, one hundred thirty-six thousand, seven hundred eighty-seven".