82082890 has 16 divisors (see below), whose sum is σ = 148136040. Its totient is φ = 32747200.

The previous prime is 82082873. The next prime is 82082893. The reversal of 82082890 is 9828028.

It can be written as a sum of positive squares in 4 ways, for example, as 44395569 + 37687321 = 6663^2 + 6139^2 .

It is not an unprimeable number, because it can be changed into a prime (82082893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6661 + ... + 14440.

Almost surely, 2^82082890 is an apocalyptic number.

82082890 is a deficient number, since it is larger than the sum of its proper divisors (66053150).

82082890 is a wasteful number, since it uses less digits than its factorization.

82082890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21497.

The product of its (nonzero) digits is 18432, while the sum is 37.

The square root of 82082890 is about 9059.9608166923. The cubic root of 82082890 is about 434.5944871125.

The spelling of 82082890 in words is "eighty-two million, eighty-two thousand, eight hundred ninety".