82172335 has 8 divisors (see below), whose sum is σ = 112693536. Its totient is φ = 56346720.

The previous prime is 82172333. The next prime is 82172383. The reversal of 82172335 is 53327128.

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

It is not a de Polignac number, because 82172335 - 2¹ = 82172333 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82172297 and 82172306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82172333) 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, 1173856 + ... + 1173925.

It is an arithmetic number, because the mean of its divisors is an integer number (14086692).

Almost surely, 2^82172335 is an apocalyptic number.

82172335 is a deficient number, since it is larger than the sum of its proper divisors (30521201).

82172335 is a wasteful number, since it uses less digits than its factorization.

82172335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347793.

The product of its digits is 10080, while the sum is 31.

The square root of 82172335 is about 9064.8957522963. The cubic root of 82172335 is about 434.7522877326.

The spelling of 82172335 in words is "eighty-two million, one hundred seventy-two thousand, three hundred thirty-five".