3809954943 has 6 divisors (see below), whose sum is σ = 5503268264. Its totient is φ = 2539969956.

The previous prime is 3809954921. The next prime is 3809954947. The reversal of 3809954943 is 3494599083.

3809954943 is a `hidden beast` number, since 3 + 8 + 0 + 99 + 549 + 4 + 3 = 666.

3809954943 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3809954943 - 2¹² = 3809950847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3809954943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3809954947) 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, 211664155 + ... + 211664172.

Almost surely, 2^3809954943 is an apocalyptic number.

3809954943 is a deficient number, since it is larger than the sum of its proper divisors (1693313321).

3809954943 is a wasteful number, since it uses less digits than its factorization.

3809954943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423328333 (or 423328330 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The square root of 3809954943 is about 61724.8324663583. The cubic root of 3809954943 is about 1561.8522463871.

The spelling of 3809954943 in words is "three billion, eight hundred nine million, nine hundred fifty-four thousand, nine hundred forty-three".