84040556 has 12 divisors (see below), whose sum is σ = 147682920. Its totient is φ = 41845440.

The previous prime is 84040549. The next prime is 84040577. The reversal of 84040556 is 65504048.

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, 42626 + ... + 44553.

It is an arithmetic number, because the mean of its divisors is an integer number (12306910).

Almost surely, 2^84040556 is an apocalyptic number.

It is an amenable number.

84040556 is a deficient number, since it is larger than the sum of its proper divisors (63642364).

84040556 is a wasteful number, since it uses less digits than its factorization.

84040556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87424 (or 87422 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 84040556 is about 9167.3636341099. The cubic root of 84040556 is about 438.0223851003.

The spelling of 84040556 in words is "eighty-four million, forty thousand, five hundred fifty-six".