3949547189 has 8 divisors (see below), whose sum is σ = 4710019200. Its totient is φ = 3238137936.

The previous prime is 3949547177. The next prime is 3949547191. The reversal of 3949547189 is 9817459493.

3949547189 is digitally balanced in base 3, 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3949547189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949547159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12265514 + ... + 12265835.

It is an arithmetic number, because the mean of its divisors is an integer number (588752400).

Almost surely, 2^3949547189 is an apocalyptic number.

It is an amenable number.

3949547189 is a deficient number, since it is larger than the sum of its proper divisors (760472011).

3949547189 is a wasteful number, since it uses less digits than its factorization.

3949547189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24531379.

The product of its digits is 9797760, while the sum is 59.

The square root of 3949547189 is about 62845.4229757426. The cubic root of 3949547189 is about 1580.6987227644.

The spelling of 3949547189 in words is "three billion, nine hundred forty-nine million, five hundred forty-seven thousand, one hundred eighty-nine".