87500578 has 16 divisors (see below), whose sum is σ = 143580096. Its totient is φ = 39662640.

The previous prime is 87500573. The next prime is 87500629.

87500578 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 87500578.

It is not an unprimeable number, because it can be changed into a prime (87500573) 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 7 ways as a sum of consecutive naturals, for example, 2875 + ... + 13537.

It is an arithmetic number, because the mean of its divisors is an integer number (8973756).

Almost surely, 2^87500578 is an apocalyptic number.

87500578 is a deficient number, since it is larger than the sum of its proper divisors (56079518).

87500578 is a wasteful number, since it uses less digits than its factorization.

87500578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11049.

The product of its (nonzero) digits is 78400, while the sum is 40.

The square root of 87500578 is about 9354.1743622834. The cubic root of 87500578 is about 443.9529784092.

The spelling of 87500578 in words is "eighty-seven million, five hundred thousand, five hundred seventy-eight".