82986770 has 16 divisors (see below), whose sum is σ = 149805720. Its totient is φ = 33099264.

The previous prime is 82986749. The next prime is 82986773. The reversal of 82986770 is 7768928.

It can be written as a sum of positive squares in 4 ways, for example, as 80227849 + 2758921 = 8957^2 + 1661^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (82986773) 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, 8225 + ... + 15284.

Almost surely, 2^82986770 is an apocalyptic number.

82986770 is a deficient number, since it is larger than the sum of its proper divisors (66818950).

82986770 is a wasteful number, since it uses less digits than its factorization.

82986770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23869.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 82986770 is about 9109.7074596279. The cubic root of 82986770 is about 436.1838891288.

The spelling of 82986770 in words is "eighty-two million, nine hundred eighty-six thousand, seven hundred seventy".