3949229 has 4 divisors (see below), whose sum is σ = 3953376. Its totient is φ = 3945084.

The previous prime is 3949217. The next prime is 3949241. The reversal of 3949229 is 9229493.

3949229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (3949217) and next prime (3949241).

It is a cyclic number.

It is not a de Polignac number, because 3949229 - 2⁴ = 3949213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3949192 and 3949201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949529) 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 3 ways as a sum of consecutive naturals, for example, 152 + ... + 2814.

It is an arithmetic number, because the mean of its divisors is an integer number (988344).

Almost surely, 2^3949229 is an apocalyptic number.

It is an amenable number.

3949229 is a deficient number, since it is larger than the sum of its proper divisors (4147).

3949229 is a wasteful number, since it uses less digits than its factorization.

3949229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4146.

The product of its digits is 34992, while the sum is 38.

The square root of 3949229 is about 1987.2667158688. The cubic root of 3949229 is about 158.0656272797.

The spelling of 3949229 in words is "three million, nine hundred forty-nine thousand, two hundred twenty-nine".