1682991339 has 4 divisors (see below), whose sum is σ = 2243988456. Its totient is φ = 1121994224.

The previous prime is 1682991301. The next prime is 1682991353. The reversal of 1682991339 is 9331992861.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1682991339 - 2²⁰ = 1681942763 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1682991291 and 1682991300.

It is not an unprimeable number, because it can be changed into a prime (1682991389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280498554 + ... + 280498559.

It is an arithmetic number, because the mean of its divisors is an integer number (560997114).

Almost surely, 2^1682991339 is an apocalyptic number.

1682991339 is a deficient number, since it is larger than the sum of its proper divisors (560997117).

1682991339 is an equidigital number, since it uses as much as digits as its factorization.

1682991339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560997116.

The product of its digits is 629856, while the sum is 51.

The square root of 1682991339 is about 41024.2774342218. The cubic root of 1682991339 is about 1189.4895390855.

The spelling of 1682991339 in words is "one billion, six hundred eighty-two million, nine hundred ninety-one thousand, three hundred thirty-nine".