3278125 has 12 divisors (see below), whose sum is σ = 4101300. Its totient is φ = 2620000.

The previous prime is 3278117. The next prime is 3278129. The reversal of 3278125 is 5218723.

It can be written as a sum of positive squares in 6 ways, for example, as 2019241 + 1258884 = 1421^2 + 1122^2 .

It is not a de Polignac number, because 3278125 - 2³ = 3278117 is a prime.

It is a super-2 number, since 2×3278125² = 21492207031250, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 3278093 and 3278102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3278129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2601 + ... + 3649.

It is an arithmetic number, because the mean of its divisors is an integer number (341775).

Almost surely, 2^3278125 is an apocalyptic number.

It is an amenable number.

3278125 is a deficient number, since it is larger than the sum of its proper divisors (823175).

3278125 is an frugal number, since it uses more digits than its factorization.

3278125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 1054 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 3278125 is about 1810.5593058500. The cubic root of 3278125 is about 148.5508598515.

It can be divided in two parts, 3278 and 125, that added together give a triangular number (3403 = T₈₂).

The spelling of 3278125 in words is "three million, two hundred seventy-eight thousand, one hundred twenty-five".