82206770 has 16 divisors (see below), whose sum is σ = 148917528. Its totient is φ = 32672640.

The previous prime is 82206743. The next prime is 82206779. The reversal of 82206770 is 7760228.

It can be written as a sum of positive squares in 4 ways, for example, as 36954241 + 45252529 = 6079^2 + 6727^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82206779) 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 7 ways as a sum of consecutive naturals, for example, 24611 + ... + 27750.

Almost surely, 2^82206770 is an apocalyptic number.

82206770 is a deficient number, since it is larger than the sum of its proper divisors (66710758).

82206770 is a wasteful number, since it uses less digits than its factorization.

82206770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52525.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 82206770 is about 9066.7949133087. The cubic root of 82206770 is about 434.8130081049.

Adding to 82206770 its reverse (7760228), we get a palindrome (89966998).

The spelling of 82206770 in words is "eighty-two million, two hundred six thousand, seven hundred seventy".