82861712 has 10 divisors (see below), whose sum is σ = 160544598. Its totient is φ = 41430848.

The previous prime is 82861711. The next prime is 82861739. The reversal of 82861712 is 21716828.

It can be written as a sum of positive squares in only one way, i.e., 78925456 + 3936256 = 8884^2 + 1984^2 .

It is not an unprimeable number, because it can be changed into a prime (82861711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2589413 + ... + 2589444.

Almost surely, 2^82861712 is an apocalyptic number.

It is an amenable number.

82861712 is a deficient number, since it is larger than the sum of its proper divisors (77682886).

82861712 is a wasteful number, since it uses less digits than its factorization.

82861712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5178865 (or 5178859 counting only the distinct ones).

The product of its digits is 10752, while the sum is 35.

The square root of 82861712 is about 9102.8408752433. The cubic root of 82861712 is about 435.9646746342.

The spelling of 82861712 in words is "eighty-two million, eight hundred sixty-one thousand, seven hundred twelve".