3894587008 has 64 divisors (see below), whose sum is σ = 8375348520. Its totient is φ = 1793249280.

The previous prime is 3894587003. The next prime is 3894587023. The reversal of 3894587008 is 8007854983.

It can be written as a sum of positive squares in 4 ways, for example, as 3381655104 + 512931904 = 58152^2 + 22648^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (52).

It is not an unprimeable number, because it can be changed into a prime (3894587003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764566 + ... + 769642.

Almost surely, 2^3894587008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3894587008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4187674260).

3894587008 is an abundant number, since it is smaller than the sum of its proper divisors (4480761512).

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

3894587008 is a wasteful number, since it uses less digits than its factorization.

3894587008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5565 (or 5553 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 52.

The square root of 3894587008 is about 62406.6263148394. The cubic root of 3894587008 is about 1573.3323419190.

The spelling of 3894587008 in words is "three billion, eight hundred ninety-four million, five hundred eighty-seven thousand, eight".