82389329 has 4 divisors (see below), whose sum is σ = 89879280. Its totient is φ = 74899380.

The previous prime is 82389313. The next prime is 82389341. The reversal of 82389329 is 92398328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 82389329 - 2⁴ = 82389313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82389329.

It is not an unprimeable number, because it can be changed into a prime (82389379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3744959 + ... + 3744980.

It is an arithmetic number, because the mean of its divisors is an integer number (22469820).

Almost surely, 2^82389329 is an apocalyptic number.

It is an amenable number.

82389329 is a deficient number, since it is larger than the sum of its proper divisors (7489951).

82389329 is a wasteful number, since it uses less digits than its factorization.

82389329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7489950.

The product of its digits is 186624, while the sum is 44.

The square root of 82389329 is about 9076.8567797448. The cubic root of 82389329 is about 435.1346374977.

The spelling of 82389329 in words is "eighty-two million, three hundred eighty-nine thousand, three hundred twenty-nine".