82981882 has 4 divisors (see below), whose sum is σ = 124472826. Its totient is φ = 41490940.

The previous prime is 82981867. The next prime is 82981891. The reversal of 82981882 is 28818928.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 81162081 + 1819801 = 9009^2 + 1349^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20745469 + ... + 20745472.

Almost surely, 2^82981882 is an apocalyptic number.

82981882 is a deficient number, since it is larger than the sum of its proper divisors (41490944).

82981882 is a wasteful number, since it uses less digits than its factorization.

82981882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41490943.

The product of its digits is 147456, while the sum is 46.

The square root of 82981882 is about 9109.4391704429. The cubic root of 82981882 is about 436.1753250781.

The spelling of 82981882 in words is "eighty-two million, nine hundred eighty-one thousand, eight hundred eighty-two".