3506533 has 4 divisors (see below), whose sum is σ = 3572748. Its totient is φ = 3440320.

The previous prime is 3506519. The next prime is 3506549. The reversal of 3506533 is 3356053.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3034564 + 471969 = 1742^2 + 687^2 .

It is a cyclic number.

It is not a de Polignac number, because 3506533 - 2²¹ = 1409381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3506498 and 3506507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506933) 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, 33028 + ... + 33133.

It is an arithmetic number, because the mean of its divisors is an integer number (893187).

Almost surely, 2^3506533 is an apocalyptic number.

It is an amenable number.

3506533 is a deficient number, since it is larger than the sum of its proper divisors (66215).

3506533 is an equidigital number, since it uses as much as digits as its factorization.

3506533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66214.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 3506533 is about 1872.5738970732. The cubic root of 3506533 is about 151.9238567152.

The spelling of 3506533 in words is "three million, five hundred six thousand, five hundred thirty-three".