3319561 has 4 divisors (see below), whose sum is σ = 3793792. Its totient is φ = 2845332.

The previous prime is 3319553. The next prime is 3319577. The reversal of 3319561 is 1659133.

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: 1659133 = 7 ⋅237019.

It is not a de Polignac number, because 3319561 - 2³ = 3319553 is a prime.

It is a super-2 number, since 2×3319561² = 22038970465442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3319531) 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, 237105 + ... + 237118.

It is an arithmetic number, because the mean of its divisors is an integer number (948448).

Almost surely, 2^3319561 is an apocalyptic number.

It is an amenable number.

3319561 is a deficient number, since it is larger than the sum of its proper divisors (474231).

3319561 is an equidigital number, since it uses as much as digits as its factorization.

3319561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474230.

The product of its digits is 2430, while the sum is 28.

The square root of 3319561 is about 1821.9662455710. The cubic root of 3319561 is about 149.1741428931.

The spelling of 3319561 in words is "three million, three hundred nineteen thousand, five hundred sixty-one".