87818448 has 20 divisors (see below), whose sum is σ = 226864448. Its totient is φ = 29272800.

The previous prime is 87818417. The next prime is 87818459. The reversal of 87818448 is 84481878.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 1829551 = 87818448 / (8 + 7 + 8 + 1 + 8 + 4 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 87818397 and 87818406.

It is a congruent number.

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, 914728 + ... + 914823.

Almost surely, 2^87818448 is an apocalyptic number.

It is an amenable number.

87818448 is an abundant number, since it is smaller than the sum of its proper divisors (139046000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87818448 is a wasteful number, since it uses less digits than its factorization.

87818448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1829562 (or 1829556 counting only the distinct ones).

The product of its digits is 458752, while the sum is 48.

The square root of 87818448 is about 9371.1497693720. The cubic root of 87818448 is about 444.4899226425.

The spelling of 87818448 in words is "eighty-seven million, eight hundred eighteen thousand, four hundred forty-eight".