3573281 has 4 divisors (see below), whose sum is σ = 3783492. Its totient is φ = 3363072.

The previous prime is 3573263. The next prime is 3573331. The reversal of 3573281 is 1823753.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1823753 = 19 ⋅95987.

It can be written as a sum of positive squares in 2 ways, for example, as 1638400 + 1934881 = 1280^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 3573281 - 2¹⁴ = 3556897 is a prime.

It is a super-2 number, since 2×3573281² = 25536674209922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3573221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105080 + ... + 105113.

It is an arithmetic number, because the mean of its divisors is an integer number (945873).

Almost surely, 2^3573281 is an apocalyptic number.

It is an amenable number.

3573281 is a deficient number, since it is larger than the sum of its proper divisors (210211).

3573281 is a wasteful number, since it uses less digits than its factorization.

3573281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210210.

The product of its digits is 5040, while the sum is 29.

The square root of 3573281 is about 1890.3124080426. The cubic root of 3573281 is about 152.8817774703.

The spelling of 3573281 in words is "three million, five hundred seventy-three thousand, two hundred eighty-one".