3949090989 has 8 divisors (see below), whose sum is σ = 5265745632. Its totient is φ = 2632581840.

The previous prime is 3949090903. The next prime is 3949090997. The reversal of 3949090989 is 9890909493.

3949090989 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 not a de Polignac number, because 3949090989 - 2⁹ = 3949090477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3949490989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81967 + ... + 120899.

It is an arithmetic number, because the mean of its divisors is an integer number (658218204).

Almost surely, 2^3949090989 is an apocalyptic number.

It is an amenable number.

3949090989 is a deficient number, since it is larger than the sum of its proper divisors (1316654643).

3949090989 is a wasteful number, since it uses less digits than its factorization.

3949090989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72747.

The product of its (nonzero) digits is 5668704, while the sum is 60.

The square root of 3949090989 is about 62841.7933305535. The cubic root of 3949090989 is about 1580.6378598781.

The spelling of 3949090989 in words is "three billion, nine hundred forty-nine million, ninety thousand, nine hundred eighty-nine".