3281625 has 24 divisors (see below), whose sum is σ = 5917704. Its totient is φ = 1749600.

The previous prime is 3281573. The next prime is 3281627. The reversal of 3281625 is 5261823.

3281625 is a `hidden beast` number, since 32 + 8 + 1 + 625 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 84681 + 3196944 = 291^2 + 1788^2 .

It is not a de Polignac number, because 3281625 - 2⁷ = 3281497 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 3¹² + 2⁸ + 8⁶ + 1 + 6 + 2²¹ + 5⁸ .

It is not an unprimeable number, because it can be changed into a prime (3281627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 334 + ... + 2583.

It is an arithmetic number, because the mean of its divisors is an integer number (246571).

Almost surely, 2^3281625 is an apocalyptic number.

It is an amenable number.

3281625 is a deficient number, since it is larger than the sum of its proper divisors (2636079).

3281625 is a wasteful number, since it uses less digits than its factorization.

3281625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938 (or 2925 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 3281625 is about 1811.5256001503. The cubic root of 3281625 is about 148.6037094815.

It can be divided in two parts, 328 and 1625, that added together give a triangular number (1953 = T₆₂).

The spelling of 3281625 in words is "three million, two hundred eighty-one thousand, six hundred twenty-five".