3838989 has 16 divisors (see below), whose sum is σ = 6382080. Its totient is φ = 1994160.

The previous prime is 3838981. The next prime is 3838993. The reversal of 3838989 is 9898383.

3838989 = 75² + 76² + ... + 228².

It is not a de Polignac number, because 3838989 - 2³ = 3838981 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3838981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8079 + ... + 8540.

It is an arithmetic number, because the mean of its divisors is an integer number (398880).

Almost surely, 2^3838989 is an apocalyptic number.

It is an amenable number.

3838989 is a deficient number, since it is larger than the sum of its proper divisors (2543091).

3838989 is a wasteful number, since it uses less digits than its factorization.

3838989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16640.

The product of its digits is 373248, while the sum is 48.

The square root of 3838989 is about 1959.3338153566. Note that the first 3 decimals coincide. The cubic root of 3838989 is about 156.5809616239.

The spelling of 3838989 in words is "three million, eight hundred thirty-eight thousand, nine hundred eighty-nine".