3949959 has 8 divisors (see below), whose sum is σ = 5671792. Its totient is φ = 2430720.

The previous prime is 3949919. The next prime is 3949961. The reversal of 3949959 is 9599493.

3949959 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 3949959 - 2⁸ = 3949703 is a prime.

It is a super-2 number, since 2×3949959² = 31204352203362, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949919) 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, 50602 + ... + 50679.

It is an arithmetic number, because the mean of its divisors is an integer number (708974).

Almost surely, 2^3949959 is an apocalyptic number.

3949959 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3949959 is a deficient number, since it is larger than the sum of its proper divisors (1721833).

3949959 is a wasteful number, since it uses less digits than its factorization.

3949959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101297.

The product of its digits is 393660, while the sum is 48.

The square root of 3949959 is about 1987.4503767390. The cubic root of 3949959 is about 158.0753659568.

The spelling of 3949959 in words is "three million, nine hundred forty-nine thousand, nine hundred fifty-nine".