3275621 has 6 divisors (see below), whose sum is σ = 3335622. Its totient is φ = 3216680.

The previous prime is 3275609. The next prime is 3275627. The reversal of 3275621 is 1265723.

It can be written as a sum of positive squares in only one way, i.e., 2927521 + 348100 = 1711^2 + 590^2 .

It is not a de Polignac number, because 3275621 - 2¹⁴ = 3259237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3275627) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3011 + ... + 3951.

It is an arithmetic number, because the mean of its divisors is an integer number (555937).

Almost surely, 2^3275621 is an apocalyptic number.

It is an amenable number.

3275621 is a deficient number, since it is larger than the sum of its proper divisors (60001).

3275621 is an frugal number, since it uses more digits than its factorization.

3275621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059 (or 1000 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 3275621 is about 1809.8676747210. The cubic root of 3275621 is about 148.5130266284.

The spelling of 3275621 in words is "three million, two hundred seventy-five thousand, six hundred twenty-one".