87815848 has 8 divisors (see below), whose sum is σ = 164654730. Its totient is φ = 43907920.

The previous prime is 87815831. The next prime is 87815873. The reversal of 87815848 is 84851878.

It can be written as a sum of positive squares in only one way, i.e., 54199044 + 33616804 = 7362^2 + 5798^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5488483 + ... + 5488498.

Almost surely, 2^87815848 is an apocalyptic number.

It is an amenable number.

87815848 is a deficient number, since it is larger than the sum of its proper divisors (76838882).

87815848 is a wasteful number, since it uses less digits than its factorization.

87815848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10976987 (or 10976983 counting only the distinct ones).

The product of its digits is 573440, while the sum is 49.

The square root of 87815848 is about 9371.0110447059. The cubic root of 87815848 is about 444.4855359970.

The spelling of 87815848 in words is "eighty-seven million, eight hundred fifteen thousand, eight hundred forty-eight".