82209243 has 8 divisors (see below), whose sum is σ = 111470400. Its totient is φ = 53877128.

The previous prime is 82209221. The next prime is 82209247. The reversal of 82209243 is 34290228.

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

It is a cyclic number.

It is not a de Polignac number, because 82209243 - 2¹² = 82205147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82209243.

It is not an unprimeable number, because it can be changed into a prime (82209247) 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, 232053 + ... + 232406.

It is an arithmetic number, because the mean of its divisors is an integer number (13933800).

Almost surely, 2^82209243 is an apocalyptic number.

82209243 is a deficient number, since it is larger than the sum of its proper divisors (29261157).

82209243 is a wasteful number, since it uses less digits than its factorization.

82209243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464521.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 82209243 is about 9066.9312890305. The cubic root of 82209243 is about 434.8173681748.

The spelling of 82209243 in words is "eighty-two million, two hundred nine thousand, two hundred forty-three".