3489569 has 4 divisors (see below), whose sum is σ = 3531696. Its totient is φ = 3447444.

The previous prime is 3489533. The next prime is 3489571. The reversal of 3489569 is 9659843.

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: 9659843 = 193 ⋅50051.

It is a cyclic number.

It is not a de Polignac number, because 3489569 - 2²⁰ = 2440993 is a prime.

It is a super-2 number, since 2×3489569² = 24354183611522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3489529) 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, 20939 + ... + 21104.

It is an arithmetic number, because the mean of its divisors is an integer number (882924).

Almost surely, 2^3489569 is an apocalyptic number.

It is an amenable number.

3489569 is a deficient number, since it is larger than the sum of its proper divisors (42127).

3489569 is an equidigital number, since it uses as much as digits as its factorization.

3489569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42126.

The product of its digits is 233280, while the sum is 44.

The square root of 3489569 is about 1868.0388111600. The cubic root of 3489569 is about 151.6784667924.

The spelling of 3489569 in words is "three million, four hundred eighty-nine thousand, five hundred sixty-nine".