3893389 has 4 divisors (see below), whose sum is σ = 3913756. Its totient is φ = 3873024.

The previous prime is 3893387. The next prime is 3893419. The reversal of 3893389 is 9833983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9833983 = 199 ⋅49417.

It can be written as a sum of positive squares in 2 ways, for example, as 2832489 + 1060900 = 1683^2 + 1030^2 .

It is a cyclic number.

It is not a de Polignac number, because 3893389 - 2¹ = 3893387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3893381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9894 + ... + 10279.

It is an arithmetic number, because the mean of its divisors is an integer number (978439).

Almost surely, 2^3893389 is an apocalyptic number.

It is an amenable number.

3893389 is a deficient number, since it is larger than the sum of its proper divisors (20367).

3893389 is a wasteful number, since it uses less digits than its factorization.

3893389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20366.

The product of its digits is 139968, while the sum is 43.

The square root of 3893389 is about 1973.1672508939. The cubic root of 3893389 is about 157.3171001917.

The spelling of 3893389 in words is "three million, eight hundred ninety-three thousand, three hundred eighty-nine".