82543707 has 12 divisors (see below), whose sum is σ = 122452720. Its totient is φ = 53541648.

The previous prime is 82543649. The next prime is 82543709. The reversal of 82543707 is 70734528.

It is not a de Polignac number, because 82543707 - 2¹⁹ = 82019419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82543709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123607 + ... + 124272.

Almost surely, 2^82543707 is an apocalyptic number.

82543707 is a deficient number, since it is larger than the sum of its proper divisors (39909013).

82543707 is a wasteful number, since it uses less digits than its factorization.

82543707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247922 (or 247919 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 82543707 is about 9085.3567348784. The cubic root of 82543707 is about 435.4062475177.

The spelling of 82543707 in words is "eighty-two million, five hundred forty-three thousand, seven hundred seven".