82093540 has 12 divisors (see below), whose sum is σ = 172396476. Its totient is φ = 32837408.

The previous prime is 82093499. The next prime is 82093591. The reversal of 82093540 is 4539028.

It can be written as a sum of positive squares in 2 ways, for example, as 65642404 + 16451136 = 8102^2 + 4056^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2052319 + ... + 2052358.

It is an arithmetic number, because the mean of its divisors is an integer number (14366373).

Almost surely, 2^82093540 is an apocalyptic number.

It is an amenable number.

82093540 is an abundant number, since it is smaller than the sum of its proper divisors (90302936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82093540 is a wasteful number, since it uses less digits than its factorization.

82093540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104686 (or 4104684 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 82093540 is about 9060.5485485152. The cubic root of 82093540 is about 434.6132820612.

The spelling of 82093540 in words is "eighty-two million, ninety-three thousand, five hundred forty".