82179213 has 8 divisors (see below), whose sum is σ = 110892768. Its totient is φ = 54125904.

The previous prime is 82179193. The next prime is 82179247. The reversal of 82179213 is 31297128.

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

It is not a de Polignac number, because 82179213 - 2¹⁰ = 82178189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82179263) 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, 164770 + ... + 165267.

It is an arithmetic number, because the mean of its divisors is an integer number (13861596).

Almost surely, 2^82179213 is an apocalyptic number.

82179213 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

82179213 is a deficient number, since it is larger than the sum of its proper divisors (28713555).

82179213 is a wasteful number, since it uses less digits than its factorization.

82179213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330123.

The product of its digits is 6048, while the sum is 33.

The square root of 82179213 is about 9065.2751199288. The cubic root of 82179213 is about 434.7644172926.

The spelling of 82179213 in words is "eighty-two million, one hundred seventy-nine thousand, two hundred thirteen".