682917949 has 12 divisors (see below), whose sum is σ = 804475200. Its totient is φ = 577945368.

The previous prime is 682917947. The next prime is 682917967. The reversal of 682917949 is 949719286.

It is not a de Polignac number, because 682917949 - 2¹ = 682917947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 682917949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682917947) 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, 84339 + ... + 92080.

It is an arithmetic number, because the mean of its divisors is an integer number (67039600).

Almost surely, 2^682917949 is an apocalyptic number.

It is an amenable number.

682917949 is a deficient number, since it is larger than the sum of its proper divisors (121557251).

682917949 is a wasteful number, since it uses less digits than its factorization.

682917949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176512 (or 176505 counting only the distinct ones).

The product of its digits is 1959552, while the sum is 55.

The square root of 682917949 is about 26132.6988464644. The cubic root of 682917949 is about 880.6219557210.

The spelling of 682917949 in words is "six hundred eighty-two million, nine hundred seventeen thousand, nine hundred forty-nine".