83172851 has 8 divisors (see below), whose sum is σ = 83847024. Its totient is φ = 82501920.

The previous prime is 83172839. The next prime is 83172871. The reversal of 83172851 is 15827138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83172851 - 2⁶ = 83172787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83172811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77861 + ... + 78921.

It is an arithmetic number, because the mean of its divisors is an integer number (10480878).

Almost surely, 2^83172851 is an apocalyptic number.

83172851 is a deficient number, since it is larger than the sum of its proper divisors (674173).

83172851 is a wasteful number, since it uses less digits than its factorization.

83172851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621.

The product of its digits is 13440, while the sum is 35.

The square root of 83172851 is about 9119.9150763590. The cubic root of 83172851 is about 436.5096637231.

Adding to 83172851 its reverse (15827138), we get a palindrome (98999989).

The spelling of 83172851 in words is "eighty-three million, one hundred seventy-two thousand, eight hundred fifty-one".