8670564 has 60 divisors (see below), whose sum is σ = 25911424. Its totient is φ = 2476656.

The previous prime is 8670559. The next prime is 8670583. The reversal of 8670564 is 4650768.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 357 + ... + 4179.

Almost surely, 2^8670564 is an apocalyptic number.

8670564 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8670564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12955712).

8670564 is an abundant number, since it is smaller than the sum of its proper divisors (17240860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8670564 is a wasteful number, since it uses less digits than its factorization.

8670564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846 (or 3835 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 8670564 is about 2944.5821435307. The cubic root of 8670564 is about 205.4387904440.

The spelling of 8670564 in words is "eight million, six hundred seventy thousand, five hundred sixty-four".