83533868 has 24 divisors (see below), whose sum is σ = 161061264. Its totient is φ = 37592000.

The previous prime is 83533867. The next prime is 83533873. The reversal of 83533868 is 86833538.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (83533867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4955 + ... + 13842.

It is an arithmetic number, because the mean of its divisors is an integer number (6710886).

Almost surely, 2^83533868 is an apocalyptic number.

It is an amenable number.

83533868 is a deficient number, since it is larger than the sum of its proper divisors (77527396).

83533868 is a wasteful number, since it uses less digits than its factorization.

83533868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18913 (or 18911 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 83533868 is about 9139.6864278814. The cubic root of 83533868 is about 437.1403180355.

It can be divided in two parts, 8353 and 3868, that added together give a palindrome (12221).

The spelling of 83533868 in words is "eighty-three million, five hundred thirty-three thousand, eight hundred sixty-eight".