83161863 has 16 divisors (see below), whose sum is σ = 123513600. Its totient is φ = 55301400.

The previous prime is 83161861. The next prime is 83161873. The reversal of 83161863 is 36816138.

83161863 is a `hidden beast` number, since 8 + 31 + 618 + 6 + 3 = 666.

It is not a de Polignac number, because 83161863 - 2¹ = 83161861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83161861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7638 + ... + 14988.

It is an arithmetic number, because the mean of its divisors is an integer number (7719600).

Almost surely, 2^83161863 is an apocalyptic number.

83161863 is a deficient number, since it is larger than the sum of its proper divisors (40351737).

83161863 is a wasteful number, since it uses less digits than its factorization.

83161863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7779 (or 7773 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 83161863 is about 9119.3126385710. The cubic root of 83161863 is about 436.4904403853.

The spelling of 83161863 in words is "eighty-three million, one hundred sixty-one thousand, eight hundred sixty-three".