3885289 has 4 divisors (see below), whose sum is σ = 3895380. Its totient is φ = 3875200.

The previous prime is 3885281. The next prime is 3885293. The reversal of 3885289 is 9825883.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9825883 = 1249 ⋅7867.

It can be written as a sum of positive squares in 2 ways, for example, as 3258025 + 627264 = 1805^2 + 792^2 .

It is a cyclic number.

It is not a de Polignac number, because 3885289 - 2³ = 3885281 is a prime.

It is a super-2 number, since 2×3885289² = 30190941227042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3885281) 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, 4444 + ... + 5245.

It is an arithmetic number, because the mean of its divisors is an integer number (973845).

Almost surely, 2^3885289 is an apocalyptic number.

It is an amenable number.

3885289 is a deficient number, since it is larger than the sum of its proper divisors (10091).

3885289 is an equidigital number, since it uses as much as digits as its factorization.

3885289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10090.

The product of its digits is 138240, while the sum is 43.

The square root of 3885289 is about 1971.1136446182. The cubic root of 3885289 is about 157.2079276757.

The spelling of 3885289 in words is "three million, eight hundred eighty-five thousand, two hundred eighty-nine".