82022609 has 8 divisors (see below), whose sum is σ = 83319720. Its totient is φ = 80735616.

The previous prime is 82022597. The next prime is 82022617. The reversal of 82022609 is 90622028.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 25472209 + 56550400 = 5047^2 + 7520^2 .

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 82022609 - 2¹² = 82018513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82022659) 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, 14717 + ... + 19509.

It is an arithmetic number, because the mean of its divisors is an integer number (10414965).

Almost surely, 2^82022609 is an apocalyptic number.

It is an amenable number.

82022609 is a deficient number, since it is larger than the sum of its proper divisors (1297111).

82022609 is a wasteful number, since it uses less digits than its factorization.

82022609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5059.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 82022609 is about 9056.6334252856. The cubic root of 82022609 is about 434.4880735183.

The spelling of 82022609 in words is "eighty-two million, twenty-two thousand, six hundred nine".