82397219 has 8 divisors (see below), whose sum is σ = 83865600. Its totient is φ = 80941896.

The previous prime is 82397213. The next prime is 82397221. The reversal of 82397219 is 91279328.

It is a happy number.

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 82397219 - 2²⁰ = 81348643 is a prime.

It is a super-2 number, since 2×82397219² = 13578603397867922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82397213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9932 + ... + 16230.

It is an arithmetic number, because the mean of its divisors is an integer number (10483200).

Almost surely, 2^82397219 is an apocalyptic number.

82397219 is a deficient number, since it is larger than the sum of its proper divisors (1468381).

82397219 is a wasteful number, since it uses less digits than its factorization.

82397219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529.

The product of its digits is 54432, while the sum is 41.

The square root of 82397219 is about 9077.2913911585. The cubic root of 82397219 is about 435.1485272523.

The spelling of 82397219 in words is "eighty-two million, three hundred ninety-seven thousand, two hundred nineteen".