3278889 has 6 divisors (see below), whose sum is σ = 4736186. Its totient is φ = 2185920.

The previous prime is 3278867. The next prime is 3278917. The reversal of 3278889 is 9888723.

It can be written as a sum of positive squares in only one way, i.e., 2862864 + 416025 = 1692^2 + 645^2 .

It is not a de Polignac number, because 3278889 - 2⁷ = 3278761 is a prime.

It is a super-2 number, since 2×3278889² = 21502226148642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3278809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 182152 + ... + 182169.

Almost surely, 2^3278889 is an apocalyptic number.

It is an amenable number.

3278889 is a deficient number, since it is larger than the sum of its proper divisors (1457297).

3278889 is a wasteful number, since it uses less digits than its factorization.

3278889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364327 (or 364324 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 3278889 is about 1810.7702780861. The cubic root of 3278889 is about 148.5623993791.

It can be divided in two parts, 327 and 8889, that added together give a square (9216 = 96²).

The spelling of 3278889 in words is "three million, two hundred seventy-eight thousand, eight hundred eighty-nine".