1689942883 has 6 divisors (see below), whose sum is σ = 1694695236. Its totient is φ = 1685203812.

The previous prime is 1689942833. The next prime is 1689942887. The reversal of 1689942883 is 3882499861.

It is a de Polignac number, because none of the positive numbers 2^k-1689942883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1689942887) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128416 + ... + 140962.

It is an arithmetic number, because the mean of its divisors is an integer number (282449206).

Almost surely, 2^1689942883 is an apocalyptic number.

1689942883 is a deficient number, since it is larger than the sum of its proper divisors (4752353).

1689942883 is an frugal number, since it uses more digits than its factorization.

1689942883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13281 (or 12914 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 58.

The square root of 1689942883 is about 41108.9148847303. The cubic root of 1689942883 is about 1191.1250060604.

The spelling of 1689942883 in words is "one billion, six hundred eighty-nine million, nine hundred forty-two thousand, eight hundred eighty-three".