3939564 has 24 divisors (see below), whose sum is σ = 9238320. Its totient is φ = 1306624.

The previous prime is 3939541. The next prime is 3939569. The reversal of 3939564 is 4659393.

It is not an unprimeable number, because it can be changed into a prime (3939569) 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, 2092 + ... + 3500.

It is an arithmetic number, because the mean of its divisors is an integer number (384930).

Almost surely, 2^3939564 is an apocalyptic number.

It is an amenable number.

3939564 is an abundant number, since it is smaller than the sum of its proper divisors (5298756).

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

3939564 is a wasteful number, since it uses less digits than its factorization.

3939564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1647 counting only the distinct ones).

The product of its digits is 87480, while the sum is 39.

The square root of 3939564 is about 1984.8334942760. The cubic root of 3939564 is about 157.9365765846.

The spelling of 3939564 in words is "three million, nine hundred thirty-nine thousand, five hundred sixty-four".