82639016 has 16 divisors (see below), whose sum is σ = 155188500. Its totient is φ = 41255424.

The previous prime is 82639013. The next prime is 82639097. The reversal of 82639016 is 61093628.

It can be written as a sum of positive squares in 2 ways, for example, as 80174116 + 2464900 = 8954^2 + 1570^2 .

It is not an unprimeable number, because it can be changed into a prime (82639013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2291 + ... + 13058.

Almost surely, 2^82639016 is an apocalyptic number.

It is an amenable number.

82639016 is a deficient number, since it is larger than the sum of its proper divisors (72549484).

82639016 is a wasteful number, since it uses less digits than its factorization.

82639016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16028 (or 16024 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 82639016 is about 9090.6004202143. The cubic root of 82639016 is about 435.5737635076.

The spelling of 82639016 in words is "eighty-two million, six hundred thirty-nine thousand, sixteen".