87284511 has 12 divisors (see below), whose sum is σ = 133494192. Its totient is φ = 54766656.

The previous prime is 87284507. The next prime is 87284557. The reversal of 87284511 is 11548278.

It is not a de Polignac number, because 87284511 - 2² = 87284507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87284111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 285091 + ... + 285396.

It is an arithmetic number, because the mean of its divisors is an integer number (11124516).

Almost surely, 2^87284511 is an apocalyptic number.

87284511 is a deficient number, since it is larger than the sum of its proper divisors (46209681).

87284511 is a wasteful number, since it uses less digits than its factorization.

87284511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570510 (or 570507 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 87284511 is about 9342.6179949734. The cubic root of 87284511 is about 443.5872564363.

The spelling of 87284511 in words is "eighty-seven million, two hundred eighty-four thousand, five hundred eleven".