3574521 has 12 divisors (see below), whose sum is σ = 5181540. Its totient is φ = 2374560.

The previous prime is 3574463. The next prime is 3574523. The reversal of 3574521 is 1254753.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1440000 + 2134521 = 1200^2 + 1461^2 .

It is not a de Polignac number, because 3574521 - 2⁶ = 3574457 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 not an unprimeable number, because it can be changed into a prime (3574523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2991 + ... + 4011.

It is an arithmetic number, because the mean of its divisors is an integer number (431795).

Almost surely, 2^3574521 is an apocalyptic number.

It is an amenable number.

3574521 is a deficient number, since it is larger than the sum of its proper divisors (1607019).

3574521 is a wasteful number, since it uses less digits than its factorization.

3574521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416 (or 1413 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 3574521 is about 1890.6403677061. The cubic root of 3574521 is about 152.8994597703.

It can be divided in two parts, 3574 and 521, that added together give a triangular number (4095 = T₉₀).

The spelling of 3574521 in words is "three million, five hundred seventy-four thousand, five hundred twenty-one".