1682991956 has 12 divisors (see below), whose sum is σ = 3100248480. Its totient is φ = 797206680.

The previous prime is 1682991931. The next prime is 1682991971. The reversal of 1682991956 is 6591992861.

It is a congruent number.

It is an unprimeable number.

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, 11072240 + ... + 11072391.

It is an arithmetic number, because the mean of its divisors is an integer number (258354040).

Almost surely, 2^1682991956 is an apocalyptic number.

It is an amenable number.

1682991956 is a deficient number, since it is larger than the sum of its proper divisors (1417256524).

1682991956 is a wasteful number, since it uses less digits than its factorization.

1682991956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22144654 (or 22144652 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 56.

The square root of 1682991956 is about 41024.2849541586. The cubic root of 1682991956 is about 1189.4896844447.

The spelling of 1682991956 in words is "one billion, six hundred eighty-two million, nine hundred ninety-one thousand, nine hundred fifty-six".