83880173 has 4 divisors (see below), whose sum is σ = 90332508. Its totient is φ = 77427840.

The previous prime is 83880161. The next prime is 83880211. The reversal of 83880173 is 37108838.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53553124 + 30327049 = 7318^2 + 5507^2 .

It is a cyclic number.

It is not a de Polignac number, because 83880173 - 2⁶ = 83880109 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 (83880113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3226148 + ... + 3226173.

It is an arithmetic number, because the mean of its divisors is an integer number (22583127).

Almost surely, 2^83880173 is an apocalyptic number.

It is an amenable number.

83880173 is a deficient number, since it is larger than the sum of its proper divisors (6452335).

83880173 is a wasteful number, since it uses less digits than its factorization.

83880173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6452334.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 83880173 is about 9158.6119581517. The cubic root of 83880173 is about 437.7435670145.

The spelling of 83880173 in words is "eighty-three million, eight hundred eighty thousand, one hundred seventy-three".