8864505 has 32 divisors (see below), whose sum is σ = 16974720. Its totient is φ = 4363200.

The previous prime is 8864503. The next prime is 8864509. The reversal of 8864505 is 5054688.

It is a happy number.

8864505 is a `hidden beast` number, since 8 + 8 + 645 + 0 + 5 = 666.

8864505 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8864505 - 2¹ = 8864503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8864505.

It is not an unprimeable number, because it can be changed into a prime (8864503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 771 + ... + 4280.

It is an arithmetic number, because the mean of its divisors is an integer number (530460).

Almost surely, 2^8864505 is an apocalyptic number.

It is an amenable number.

8864505 is a deficient number, since it is larger than the sum of its proper divisors (8110215).

8864505 is a wasteful number, since it uses less digits than its factorization.

8864505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5078 (or 5072 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 8864505 is about 2977.3318592324. The cubic root of 8864505 is about 206.9592442341.

The spelling of 8864505 in words is "eight million, eight hundred sixty-four thousand, five hundred five".