87566486 has 16 divisors (see below), whose sum is σ = 155291040. Its totient is φ = 36234240.

The previous prime is 87566483. The next prime is 87566509. The reversal of 87566486 is 68466578.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87566483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107435 + ... + 108246.

It is an arithmetic number, because the mean of its divisors is an integer number (9705690).

Almost surely, 2^87566486 is an apocalyptic number.

87566486 is a deficient number, since it is larger than the sum of its proper divisors (67724554).

87566486 is a wasteful number, since it uses less digits than its factorization.

87566486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215719.

The product of its digits is 1935360, while the sum is 50.

The square root of 87566486 is about 9357.6966182923. The cubic root of 87566486 is about 444.0644165662.

The spelling of 87566486 in words is "eighty-seven million, five hundred sixty-six thousand, four hundred eighty-six".