82022661 has 24 divisors (see below), whose sum is σ = 138288384. Its totient is φ = 45871200.

The previous prime is 82022659. The next prime is 82022693. The reversal of 82022661 is 16622028.

It is not a de Polignac number, because 82022661 - 2¹ = 82022659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82022261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10890 + ... + 16811.

It is an arithmetic number, because the mean of its divisors is an integer number (5762016).

Almost surely, 2^82022661 is an apocalyptic number.

It is an amenable number.

82022661 is a deficient number, since it is larger than the sum of its proper divisors (56265723).

82022661 is a wasteful number, since it uses less digits than its factorization.

82022661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27761 (or 27758 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 82022661 is about 9056.6362961091. The cubic root of 82022661 is about 434.4881653359.

Adding to 82022661 its reverse (16622028), we get a palindrome (98644689).

The spelling of 82022661 in words is "eighty-two million, twenty-two thousand, six hundred sixty-one".