682780851 has 12 divisors (see below), whose sum is σ = 987524928. Its totient is φ = 454593744.

The previous prime is 682780849. The next prime is 682780867. The reversal of 682780851 is 158087286.

It is not a de Polignac number, because 682780851 - 2¹ = 682780849 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 682780797 and 682780806.

It is not an unprimeable number, because it can be changed into a prime (682780841) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42115 + ... + 56028.

It is an arithmetic number, because the mean of its divisors is an integer number (82293744).

Almost surely, 2^682780851 is an apocalyptic number.

682780851 is a deficient number, since it is larger than the sum of its proper divisors (304744077).

682780851 is a wasteful number, since it uses less digits than its factorization.

682780851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98922 (or 98919 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 682780851 is about 26130.0756026461. The cubic root of 682780851 is about 880.5630225363.

It can be divided in two parts, 6827 and 80851, that added together give a palindrome (87678).

The spelling of 682780851 in words is "six hundred eighty-two million, seven hundred eighty thousand, eight hundred fifty-one".