3964586 has 4 divisors (see below), whose sum is σ = 5946882. Its totient is φ = 1982292.

The previous prime is 3964549. The next prime is 3964589. The reversal of 3964586 is 6854693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6854693 = 113 ⋅60661.

It can be written as a sum of positive squares in only one way, i.e., 2449225 + 1515361 = 1565^2 + 1231^2 .

It is not an unprimeable number, because it can be changed into a prime (3964589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 991145 + ... + 991148.

Almost surely, 2^3964586 is an apocalyptic number.

3964586 is a deficient number, since it is larger than the sum of its proper divisors (1982296).

3964586 is a wasteful number, since it uses less digits than its factorization.

3964586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1982295.

The product of its digits is 155520, while the sum is 41.

The square root of 3964586 is about 1991.1268166543. The cubic root of 3964586 is about 158.2702473205.

The spelling of 3964586 in words is "three million, nine hundred sixty-four thousand, five hundred eighty-six".