3524581 has 4 divisors (see below), whose sum is σ = 3606592. Its totient is φ = 3442572.

The previous prime is 3524569. The next prime is 3524603. The reversal of 3524581 is 1854253.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1854253 = 557 ⋅3329.

It is a cyclic number.

It is not a de Polignac number, because 3524581 - 2⁷ = 3524453 is a prime.

It is a super-2 number, since 2×3524581² = 24845342451122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3524531) 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, 40941 + ... + 41026.

It is an arithmetic number, because the mean of its divisors is an integer number (901648).

Almost surely, 2^3524581 is an apocalyptic number.

It is an amenable number.

3524581 is a deficient number, since it is larger than the sum of its proper divisors (82011).

3524581 is an equidigital number, since it uses as much as digits as its factorization.

3524581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82010.

The product of its digits is 4800, while the sum is 28.

The square root of 3524581 is about 1877.3867475829. The cubic root of 3524581 is about 152.1840596925.

The spelling of 3524581 in words is "three million, five hundred twenty-four thousand, five hundred eighty-one".