82982809 has 8 divisors (see below), whose sum is σ = 102132800. Its totient is φ = 65656656.

The previous prime is 82982803. The next prime is 82982839. The reversal of 82982809 is 90828928.

It is a happy number.

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

It is not a de Polignac number, because 82982809 - 2⁹ = 82982297 is a prime.

It is a super-2 number, since 2×82982809² = 13772293179060962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (82982803) 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, 455859 + ... + 456040.

It is an arithmetic number, because the mean of its divisors is an integer number (12766600).

Almost surely, 2^82982809 is an apocalyptic number.

It is an amenable number.

82982809 is a deficient number, since it is larger than the sum of its proper divisors (19149991).

82982809 is a wasteful number, since it uses less digits than its factorization.

82982809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911919.

The product of its (nonzero) digits is 165888, while the sum is 46.

The square root of 82982809 is about 9109.4900515891. The cubic root of 82982809 is about 436.1769492601.

It can be divided in two parts, 829 and 82809, that added together give a palindrome (83638).

The spelling of 82982809 in words is "eighty-two million, nine hundred eighty-two thousand, eight hundred nine".