3889281 has 16 divisors (see below), whose sum is σ = 5955840. Its totient is φ = 2232720.

The previous prime is 3889279. The next prime is 3889289. The reversal of 3889281 is 1829883.

It is not a de Polignac number, because 3889281 - 2¹ = 3889279 is a prime.

It is a super-2 number, since 2×3889281² = 30253013393922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3889289) 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, 2475 + ... + 3728.

It is an arithmetic number, because the mean of its divisors is an integer number (372240).

Almost surely, 2^3889281 is an apocalyptic number.

It is an amenable number.

3889281 is a deficient number, since it is larger than the sum of its proper divisors (2066559).

3889281 is a wasteful number, since it uses less digits than its factorization.

3889281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6236.

The product of its digits is 27648, while the sum is 39.

The square root of 3889281 is about 1972.1260101728. The cubic root of 3889281 is about 157.2617511479.

It can be divided in two parts, 388 and 9281, that added together give a palindrome (9669).

The spelling of 3889281 in words is "three million, eight hundred eighty-nine thousand, two hundred eighty-one".