3964361 has 4 divisors (see below), whose sum is σ = 3969300. Its totient is φ = 3959424.

The previous prime is 3964357. The next prime is 3964381. The reversal of 3964361 is 1634693.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 866761 + 3097600 = 931^2 + 1760^2 .

It is a cyclic number.

It is not a de Polignac number, because 3964361 - 2² = 3964357 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3964381) 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, 956 + ... + 2973.

It is an arithmetic number, because the mean of its divisors is an integer number (992325).

Almost surely, 2^3964361 is an apocalyptic number.

It is an amenable number.

3964361 is a deficient number, since it is larger than the sum of its proper divisors (4939).

3964361 is a wasteful number, since it uses less digits than its factorization.

3964361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938.

The product of its digits is 11664, while the sum is 32.

The square root of 3964361 is about 1991.0703151823. The cubic root of 3964361 is about 158.2672531887.

The spelling of 3964361 in words is "three million, nine hundred sixty-four thousand, three hundred sixty-one".