82822237 has 4 divisors (see below), whose sum is σ = 83059900. Its totient is φ = 82584576.

The previous prime is 82822217. The next prime is 82822247. The reversal of 82822237 is 73222828.

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 75794436 + 7027801 = 8706^2 + 2651^2 .

It is a cyclic number.

It is not a de Polignac number, because 82822237 - 2⁷ = 82822109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82822217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118308 + ... + 119005.

It is an arithmetic number, because the mean of its divisors is an integer number (20764975).

Almost surely, 2^82822237 is an apocalyptic number.

It is an amenable number.

82822237 is a deficient number, since it is larger than the sum of its proper divisors (237663).

82822237 is a wasteful number, since it uses less digits than its factorization.

82822237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237662.

The product of its digits is 21504, while the sum is 34.

The square root of 82822237 is about 9100.6723378001. The cubic root of 82822237 is about 435.8954330078.

The spelling of 82822237 in words is "eighty-two million, eight hundred twenty-two thousand, two hundred thirty-seven".