3530257 has 16 divisors (see below), whose sum is σ = 3960000. Its totient is φ = 3132864.

The previous prime is 3530243. The next prime is 3530287. The reversal of 3530257 is 7520353.

It is a cyclic number.

It is not a de Polignac number, because 3530257 - 2¹⁹ = 3005969 is a prime.

It is a Duffinian number.

3530257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3530227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23619 + ... + 23767.

It is an arithmetic number, because the mean of its divisors is an integer number (247500).

Almost surely, 2^3530257 is an apocalyptic number.

It is an amenable number.

3530257 is a deficient number, since it is larger than the sum of its proper divisors (429743).

3530257 is a wasteful number, since it uses less digits than its factorization.

3530257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240.

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 3530257 is about 1878.8978152098. The cubic root of 3530257 is about 152.2657084947.

The spelling of 3530257 in words is "three million, five hundred thirty thousand, two hundred fifty-seven".