3949937 has 8 divisors (see below), whose sum is σ = 4087776. Its totient is φ = 3814272.

The previous prime is 3949919. The next prime is 3949961. The reversal of 3949937 is 7399493.

It is a happy number.

3949937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3949937 - 2¹² = 3945841 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3949037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3698 + ... + 4644.

It is an arithmetic number, because the mean of its divisors is an integer number (510972).

Almost surely, 2^3949937 is an apocalyptic number.

It is an amenable number.

3949937 is a deficient number, since it is larger than the sum of its proper divisors (137839).

3949937 is an equidigital number, since it uses as much as digits as its factorization.

3949937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087.

The product of its digits is 183708, while the sum is 44.

The square root of 3949937 is about 1987.4448420019. Note that the first 3 decimals coincide. The cubic root of 3949937 is about 158.0750724800.

The spelling of 3949937 in words is "three million, nine hundred forty-nine thousand, nine hundred thirty-seven".