87531746 has 16 divisors (see below), whose sum is σ = 141424800. Its totient is φ = 40497408.

The previous prime is 87531713. The next prime is 87531757. The reversal of 87531746 is 64713578.

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 7 ways as a sum of consecutive naturals, for example, 25151 + ... + 28418.

It is an arithmetic number, because the mean of its divisors is an integer number (8839050).

Almost surely, 2^87531746 is an apocalyptic number.

87531746 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

87531746 is a deficient number, since it is larger than the sum of its proper divisors (53893054).

87531746 is a wasteful number, since it uses less digits than its factorization.

87531746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53633.

The product of its digits is 141120, while the sum is 41.

The square root of 87531746 is about 9355.8402081267. The cubic root of 87531746 is about 444.0056846660.

The spelling of 87531746 in words is "eighty-seven million, five hundred thirty-one thousand, seven hundred forty-six".