3949544187 has 6 divisors (see below), whose sum is σ = 5704897172. Its totient is φ = 2633029452.

The previous prime is 3949544177. The next prime is 3949544213. The reversal of 3949544187 is 7814459493.

3949544187 is a `hidden beast` number, since 3 + 94 + 9 + 544 + 1 + 8 + 7 = 666.

It is not a de Polignac number, because 3949544187 - 2³¹ = 1802060539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3949544177) 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 5 ways as a sum of consecutive naturals, for example, 219419113 + ... + 219419130.

Almost surely, 2^3949544187 is an apocalyptic number.

3949544187 is a deficient number, since it is larger than the sum of its proper divisors (1755352985).

3949544187 is a wasteful number, since it uses less digits than its factorization.

3949544187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438838249 (or 438838246 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The square root of 3949544187 is about 62845.3990917394. The cubic root of 3949544187 is about 1580.6983222747.

The spelling of 3949544187 in words is "three billion, nine hundred forty-nine million, five hundred forty-four thousand, one hundred eighty-seven".