87470818 has 8 divisors (see below), whose sum is σ = 131784912. Its totient is φ = 43542516.

The previous prime is 87470743. The next prime is 87470821. The reversal of 87470818 is 81807478.

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

It is a super-2 number, since 2×87470818² = 15302288003178248, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95880 + ... + 96787.

It is an arithmetic number, because the mean of its divisors is an integer number (16473114).

Almost surely, 2^87470818 is an apocalyptic number.

87470818 is a deficient number, since it is larger than the sum of its proper divisors (44314094).

87470818 is a wasteful number, since it uses less digits than its factorization.

87470818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192896.

The product of its (nonzero) digits is 100352, while the sum is 43.

The square root of 87470818 is about 9352.5834933456. The cubic root of 87470818 is about 443.9026414511.

It can be divided in two parts, 87470 and 818, that added together give a palindrome (88288).

The spelling of 87470818 in words is "eighty-seven million, four hundred seventy thousand, eight hundred eighteen".