82992170 has 16 divisors (see below), whose sum is σ = 152205480. Its totient is φ = 32570304.

The previous prime is 82992157. The next prime is 82992179. The reversal of 82992170 is 7129928.

It can be written as a sum of positive squares in 4 ways, for example, as 81667369 + 1324801 = 9037^2 + 1151^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82992179) 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, 77765 + ... + 78824.

Almost surely, 2^82992170 is an apocalyptic number.

82992170 is a deficient number, since it is larger than the sum of its proper divisors (69213310).

82992170 is a wasteful number, since it uses less digits than its factorization.

82992170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156649.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 82992170 is about 9110.0038419311. The cubic root of 82992170 is about 436.1933498413.

The spelling of 82992170 in words is "eighty-two million, nine hundred ninety-two thousand, one hundred seventy".