82404556 has 12 divisors (see below), whose sum is σ = 155300992. Its totient is φ = 38032848.

The previous prime is 82404551. The next prime is 82404611. The reversal of 82404556 is 65540428.

It is a super-4 number, since 4×82404556⁴ (a number of 33 digits) contains 4444 as substring.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (82404551) by changing a digit.

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, 792300 + ... + 792403.

Almost surely, 2^82404556 is an apocalyptic number.

It is an amenable number.

82404556 is a deficient number, since it is larger than the sum of its proper divisors (72896436).

82404556 is a wasteful number, since it uses less digits than its factorization.

82404556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584720 (or 1584718 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 82404556 is about 9077.6955225432. The cubic root of 82404556 is about 435.1614426963.

The spelling of 82404556 in words is "eighty-two million, four hundred four thousand, five hundred fifty-six".