82626209 has 8 divisors (see below), whose sum is σ = 84015360. Its totient is φ = 81241776.

The previous prime is 82626199. The next prime is 82626211. The reversal of 82626209 is 90262628.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82626209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82626259) 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 7 ways as a sum of consecutive naturals, for example, 57107 + ... + 58535.

It is an arithmetic number, because the mean of its divisors is an integer number (10501920).

Almost surely, 2^82626209 is an apocalyptic number.

It is an amenable number.

82626209 is a deficient number, since it is larger than the sum of its proper divisors (1389151).

82626209 is a wasteful number, since it uses less digits than its factorization.

82626209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 82626209 is about 9089.8959840033. The cubic root of 82626209 is about 435.5512612979.

The spelling of 82626209 in words is "eighty-two million, six hundred twenty-six thousand, two hundred nine".