3850389 has 8 divisors (see below), whose sum is σ = 5704320. Its totient is φ = 2566908.

The previous prime is 3850387. The next prime is 3850391. The reversal of 3850389 is 9830583.

It is an interprime number because it is at equal distance from previous prime (3850387) and next prime (3850391).

It is not a de Polignac number, because 3850389 - 2¹ = 3850387 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 (3850387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71277 + ... + 71330.

It is an arithmetic number, because the mean of its divisors is an integer number (713040).

Almost surely, 2^3850389 is an apocalyptic number.

It is an amenable number.

3850389 is a deficient number, since it is larger than the sum of its proper divisors (1853931).

3850389 is a wasteful number, since it uses less digits than its factorization.

3850389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142616 (or 142610 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 3850389 is about 1962.2408109098. The cubic root of 3850389 is about 156.7357991760.

The spelling of 3850389 in words is "three million, eight hundred fifty thousand, three hundred eighty-nine".