82004872 has 16 divisors (see below), whose sum is σ = 162804060. Its totient is φ = 38590464.

The previous prime is 82004869. The next prime is 82004899. The reversal of 82004872 is 27840028.

It can be written as a sum of positive squares in 2 ways, for example, as 73513476 + 8491396 = 8574^2 + 2914^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301353 + ... + 301624.

Almost surely, 2^82004872 is an apocalyptic number.

It is an amenable number.

82004872 is a deficient number, since it is larger than the sum of its proper divisors (80799188).

82004872 is a wasteful number, since it uses less digits than its factorization.

82004872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603000 (or 602996 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 82004872 is about 9055.6541453393. The cubic root of 82004872 is about 434.4567525991.

The spelling of 82004872 in words is "eighty-two million, four thousand, eight hundred seventy-two".