87289318 has 8 divisors (see below), whose sum is σ = 131102712. Its totient is φ = 43588416.

The previous prime is 87289309. The next prime is 87289337. The reversal of 87289318 is 81398278.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26155 + ... + 29302.

It is an arithmetic number, because the mean of its divisors is an integer number (16387839).

Almost surely, 2^87289318 is an apocalyptic number.

87289318 is a deficient number, since it is larger than the sum of its proper divisors (43813394).

87289318 is a wasteful number, since it uses less digits than its factorization.

87289318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56246.

The product of its digits is 193536, while the sum is 46.

The square root of 87289318 is about 9342.8752533682. The cubic root of 87289318 is about 443.5953994801.

The spelling of 87289318 in words is "eighty-seven million, two hundred eighty-nine thousand, three hundred eighteen".