82671716 has 6 divisors (see below), whose sum is σ = 144675510. Its totient is φ = 41335856.

The previous prime is 82671707. The next prime is 82671733. The reversal of 82671716 is 61717628.

It can be written as a sum of positive squares in only one way, i.e., 80281600 + 2390116 = 8960^2 + 1546^2 .

It is a super-2 number, since 2×82671716² = 13669225252769312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 82671716.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10333961 + ... + 10333968.

It is an arithmetic number, because the mean of its divisors is an integer number (24112585).

Almost surely, 2^82671716 is an apocalyptic number.

It is an amenable number.

82671716 is a deficient number, since it is larger than the sum of its proper divisors (62003794).

82671716 is a wasteful number, since it uses less digits than its factorization.

82671716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20667933 (or 20667931 counting only the distinct ones).

The product of its digits is 28224, while the sum is 38.

The square root of 82671716 is about 9092.3988033962. The cubic root of 82671716 is about 435.6312076564.

The spelling of 82671716 in words is "eighty-two million, six hundred seventy-one thousand, seven hundred sixteen".