682851990 has 16 divisors (see below), whose sum is σ = 1638844848. Its totient is φ = 182093856.

The previous prime is 682851989. The next prime is 682852013. The reversal of 682851990 is 99158286.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11380837 + ... + 11380896.

It is an arithmetic number, because the mean of its divisors is an integer number (102427803).

Almost surely, 2^682851990 is an apocalyptic number.

682851990 is an abundant number, since it is smaller than the sum of its proper divisors (955992858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

682851990 is a wasteful number, since it uses less digits than its factorization.

682851990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22761743.

The product of its (nonzero) digits is 311040, while the sum is 48.

The square root of 682851990 is about 26131.4368146874. The cubic root of 682851990 is about 880.5936034552.

The spelling of 682851990 in words is "six hundred eighty-two million, eight hundred fifty-one thousand, nine hundred ninety".