82634819 has 4 divisors (see below), whose sum is σ = 86984040. Its totient is φ = 78285600.

The previous prime is 82634779. The next prime is 82634831. The reversal of 82634819 is 91843628.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82634819 is a prime.

It is a super-2 number, since 2×82634819² = 13657026622325522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82634719) 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, 2174582 + ... + 2174619.

It is an arithmetic number, because the mean of its divisors is an integer number (21746010).

Almost surely, 2^82634819 is an apocalyptic number.

82634819 is a deficient number, since it is larger than the sum of its proper divisors (4349221).

82634819 is a wasteful number, since it uses less digits than its factorization.

82634819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4349220.

The product of its digits is 82944, while the sum is 41.

The square root of 82634819 is about 9090.3695744453. The cubic root of 82634819 is about 435.5663895329.

The spelling of 82634819 in words is "eighty-two million, six hundred thirty-four thousand, eight hundred nineteen".