83868863 has 4 divisors (see below), whose sum is σ = 90320328. Its totient is φ = 77417400.

The previous prime is 83868823. The next prime is 83868887. The reversal of 83868863 is 36886838.

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 83868863 - 2⁸ = 83868607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83868823) 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, 3225713 + ... + 3225738.

It is an arithmetic number, because the mean of its divisors is an integer number (22580082).

Almost surely, 2^83868863 is an apocalyptic number.

83868863 is a deficient number, since it is larger than the sum of its proper divisors (6451465).

83868863 is a wasteful number, since it uses less digits than its factorization.

83868863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451464.

The product of its digits is 1327104, while the sum is 50.

The square root of 83868863 is about 9157.9944856939. The cubic root of 83868863 is about 437.7238917162.

The spelling of 83868863 in words is "eighty-three million, eight hundred sixty-eight thousand, eight hundred sixty-three".