8578945 has 4 divisors (see below), whose sum is σ = 10294740. Its totient is φ = 6863152.

The previous prime is 8578943. The next prime is 8578949. The reversal of 8578945 is 5498758.

8578945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4626801 + 3952144 = 2151^2 + 1988^2 .

It is a cyclic number.

It is not a de Polignac number, because 8578945 - 2¹ = 8578943 is a prime.

8578945 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 8578895 and 8578904.

It is not an unprimeable number, because it can be changed into a prime (8578943) 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, 857890 + ... + 857899.

It is an arithmetic number, because the mean of its divisors is an integer number (2573685).

Almost surely, 2^8578945 is an apocalyptic number.

It is an amenable number.

8578945 is a deficient number, since it is larger than the sum of its proper divisors (1715795).

8578945 is a wasteful number, since it uses less digits than its factorization.

8578945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715794.

The product of its digits is 403200, while the sum is 46.

The square root of 8578945 is about 2928.9836121085. The cubic root of 8578945 is about 204.7126252979.

The spelling of 8578945 in words is "eight million, five hundred seventy-eight thousand, nine hundred forty-five".