82622866 has 16 divisors (see below), whose sum is σ = 129216384. Its totient is φ = 39587184.

The previous prime is 82622863. The next prime is 82622893. The reversal of 82622866 is 66822628.

It is not an unprimeable number, because it can be changed into a prime (82622863) 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, 4506 + ... + 13621.

It is an arithmetic number, because the mean of its divisors is an integer number (8076024).

Almost surely, 2^82622866 is an apocalyptic number.

82622866 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

82622866 is a deficient number, since it is larger than the sum of its proper divisors (46593518).

82622866 is a wasteful number, since it uses less digits than its factorization.

82622866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18225.

The product of its digits is 110592, while the sum is 40.

The square root of 82622866 is about 9089.7120966508. The cubic root of 82622866 is about 435.5453871832.

The spelling of 82622866 in words is "eighty-two million, six hundred twenty-two thousand, eight hundred sixty-six".