1683116387 has 16 divisors (see below), whose sum is σ = 1836134400. Its totient is φ = 1536952320.

The previous prime is 1683116371. The next prime is 1683116401. The reversal of 1683116387 is 7836113861.

It is a cyclic number.

It is not a de Polignac number, because 1683116387 - 2⁴ = 1683116371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1683115387) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 145814 + ... + 156932.

It is an arithmetic number, because the mean of its divisors is an integer number (114758400).

Almost surely, 2^1683116387 is an apocalyptic number.

1683116387 is a deficient number, since it is larger than the sum of its proper divisors (153018013).

1683116387 is a wasteful number, since it uses less digits than its factorization.

1683116387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11426.

The product of its digits is 145152, while the sum is 44.

The square root of 1683116387 is about 41025.8014790692. The cubic root of 1683116387 is about 1189.5189984576.

The spelling of 1683116387 in words is "one billion, six hundred eighty-three million, one hundred sixteen thousand, three hundred eighty-seven".