82789982 has 16 divisors (see below), whose sum is σ = 136311552. Its totient is φ = 37399320.

The previous prime is 82789981. The next prime is 82789991. The reversal of 82789982 is 28998728.

It is a super-2 number, since 2×82789982² = 13708362239120648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82789981) 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, 7958 + ... + 15129.

It is an arithmetic number, because the mean of its divisors is an integer number (8519472).

Almost surely, 2^82789982 is an apocalyptic number.

82789982 is a deficient number, since it is larger than the sum of its proper divisors (53521570).

82789982 is a wasteful number, since it uses less digits than its factorization.

82789982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23263.

The product of its digits is 1161216, while the sum is 53.

The square root of 82789982 is about 9098.9000434118. The cubic root of 82789982 is about 435.8388393791.

It can be divided in two parts, 827 and 89982, that added together give a palindrome (90809).

The spelling of 82789982 in words is "eighty-two million, seven hundred eighty-nine thousand, nine hundred eighty-two".