87847065 has 64 divisors (see below), whose sum is σ = 164524800. Its totient is φ = 44416512.

The previous prime is 87847049. The next prime is 87847099. The reversal of 87847065 is 56074878.

It is not a de Polignac number, because 87847065 - 2⁴ = 87847049 is a prime.

It is a super-2 number, since 2×87847065² = 15434213658228450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 87847065.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 214581 + ... + 214989.

It is an arithmetic number, because the mean of its divisors is an integer number (2570700).

Almost surely, 2^87847065 is an apocalyptic number.

It is an amenable number.

87847065 is a deficient number, since it is larger than the sum of its proper divisors (76677735).

87847065 is a wasteful number, since it uses less digits than its factorization.

87847065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 87847065 is about 9372.6765120749. The cubic root of 87847065 is about 444.5381987052.

The spelling of 87847065 in words is "eighty-seven million, eight hundred forty-seven thousand, sixty-five".