87718366 has 32 divisors (see below), whose sum is σ = 142990848. Its totient is φ = 40249440.

The previous prime is 87718331. The next prime is 87718381. The reversal of 87718366 is 66381778.

It is a Harshad number since it is a multiple of its sum of digits (46).

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 15 ways as a sum of consecutive naturals, for example, 120295 + ... + 121021.

It is an arithmetic number, because the mean of its divisors is an integer number (4468464).

Almost surely, 2^87718366 is an apocalyptic number.

87718366 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

87718366 is a deficient number, since it is larger than the sum of its proper divisors (55272482).

87718366 is a wasteful number, since it uses less digits than its factorization.

87718366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856.

The product of its digits is 338688, while the sum is 46.

The square root of 87718366 is about 9365.8083473879. The cubic root of 87718366 is about 444.3210046404.

The spelling of 87718366 in words is "eighty-seven million, seven hundred eighteen thousand, three hundred sixty-six".