83193855 has 16 divisors (see below), whose sum is σ = 133250400. Its totient is φ = 44323328.

The previous prime is 83193841. The next prime is 83193857. The reversal of 83193855 is 55839138.

It is a cyclic number.

It is not a de Polignac number, because 83193855 - 2⁴ = 83193839 is a prime.

It is a super-2 number, since 2×83193855² = 13842435019522050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83193857) 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, 15571 + ... + 20219.

It is an arithmetic number, because the mean of its divisors is an integer number (8328150).

Almost surely, 2^83193855 is an apocalyptic number.

83193855 is a deficient number, since it is larger than the sum of its proper divisors (50056545).

83193855 is a wasteful number, since it uses less digits than its factorization.

83193855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5850.

The product of its digits is 129600, while the sum is 42.

The square root of 83193855 is about 9121.0665494776. The cubic root of 83193855 is about 436.5464051886.

It can be divided in two parts, 83193 and 855, that added together give a palindrome (84048).

The spelling of 83193855 in words is "eighty-three million, one hundred ninety-three thousand, eight hundred fifty-five".