8945864 has 16 divisors (see below), whose sum is σ = 16839900. Its totient is φ = 4455232.

The previous prime is 8945851. The next prime is 8945869. The reversal of 8945864 is 4685498.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8236900 + 708964 = 2870^2 + 842^2 .

It is not an unprimeable number, because it can be changed into a prime (8945869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74 + ... + 4230.

Almost surely, 2^8945864 is an apocalyptic number.

It is an amenable number.

8945864 is a deficient number, since it is larger than the sum of its proper divisors (7894036).

8945864 is a wasteful number, since it uses less digits than its factorization.

8945864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432 (or 4428 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 8945864 is about 2990.9637242869. The cubic root of 8945864 is about 207.5904787592.

The spelling of 8945864 in words is "eight million, nine hundred forty-five thousand, eight hundred sixty-four".