82833409 has 4 divisors (see below), whose sum is σ = 82853716. Its totient is φ = 82813104.

The previous prime is 82833403. The next prime is 82833427. The reversal of 82833409 is 90433828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 66064384 + 16769025 = 8128^2 + 4095^2 .

It is a cyclic number.

It is not a de Polignac number, because 82833409 - 2¹³ = 82825217 is a prime.

It is a super-2 number, since 2×82833409² = 13722747293122562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82833403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1674 + ... + 12979.

It is an arithmetic number, because the mean of its divisors is an integer number (20713429).

Almost surely, 2^82833409 is an apocalyptic number.

It is an amenable number.

82833409 is a deficient number, since it is larger than the sum of its proper divisors (20307).

82833409 is a wasteful number, since it uses less digits than its factorization.

82833409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20306.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 82833409 is about 9101.2861179066. The cubic root of 82833409 is about 435.9150316285.

The spelling of 82833409 in words is "eighty-two million, eight hundred thirty-three thousand, four hundred nine".