3520369 has 4 divisors (see below), whose sum is σ = 3532144. Its totient is φ = 3508596.

The previous prime is 3520351. The next prime is 3520399. The reversal of 3520369 is 9630253.

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.

It is a cyclic number.

It is not a de Polignac number, because 3520369 - 2¹¹ = 3518321 is a prime.

It is a super-2 number, since 2×3520369² = 24785995792322, which contains 22 as substring.

It is a Duffinian number.

3520369 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3520399) 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, 5427 + ... + 6040.

It is an arithmetic number, because the mean of its divisors is an integer number (883036).

Almost surely, 2^3520369 is an apocalyptic number.

It is an amenable number.

3520369 is a deficient number, since it is larger than the sum of its proper divisors (11775).

3520369 is a wasteful number, since it uses less digits than its factorization.

3520369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11774.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 3520369 is about 1876.2646401827. The cubic root of 3520369 is about 152.1234137351.

The spelling of 3520369 in words is "three million, five hundred twenty thousand, three hundred sixty-nine".