84881530 has 32 divisors (see below), whose sum is σ = 158734080. Its totient is φ = 32656320.

The previous prime is 84881507. The next prime is 84881549. The reversal of 84881530 is 3518848.

It is a self number, because there is not a number n which added to its sum of digits gives 84881530.

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 15 ways as a sum of consecutive naturals, for example, 26200 + ... + 29260.

It is an arithmetic number, because the mean of its divisors is an integer number (4960440).

Almost surely, 2^84881530 is an apocalyptic number.

84881530 is a deficient number, since it is larger than the sum of its proper divisors (73852550).

84881530 is a wasteful number, since it uses less digits than its factorization.

84881530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3174.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 84881530 is about 9213.1172791841. The cubic root of 84881530 is about 439.4786007063.

The spelling of 84881530 in words is "eighty-four million, eight hundred eighty-one thousand, five hundred thirty".