3961447 has 4 divisors (see below), whose sum is σ = 4527376. Its totient is φ = 3395520.

The previous prime is 3961439. The next prime is 3961453. The reversal of 3961447 is 7441693.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3961447 - 2³ = 3961439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3961417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282954 + ... + 282967.

It is an arithmetic number, because the mean of its divisors is an integer number (1131844).

Almost surely, 2^3961447 is an apocalyptic number.

3961447 is a deficient number, since it is larger than the sum of its proper divisors (565929).

3961447 is an equidigital number, since it uses as much as digits as its factorization.

3961447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565928.

The product of its digits is 18144, while the sum is 34.

The square root of 3961447 is about 1990.3384134363. The cubic root of 3961447 is about 158.2284656160.

The spelling of 3961447 in words is "three million, nine hundred sixty-one thousand, four hundred forty-seven".