3319581 has 4 divisors (see below), whose sum is σ = 4426112. Its totient is φ = 2213052.

The previous prime is 3319579. The next prime is 3319583. The reversal of 3319581 is 1859133.

It is a happy number.

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: 1859133 = 3 ⋅619711.

It is an interprime number because it is at equal distance from previous prime (3319579) and next prime (3319583).

It is not a de Polignac number, because 3319581 - 2¹ = 3319579 is a prime.

It is a super-2 number, since 2×3319581² = 22039236031122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

3319581 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3319583) 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, 553261 + ... + 553266.

It is an arithmetic number, because the mean of its divisors is an integer number (1106528).

Almost surely, 2^3319581 is an apocalyptic number.

It is an amenable number.

3319581 is a deficient number, since it is larger than the sum of its proper divisors (1106531).

3319581 is a wasteful number, since it uses less digits than its factorization.

3319581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106530.

The product of its digits is 3240, while the sum is 30.

The square root of 3319581 is about 1821.9717341386. The cubic root of 3319581 is about 149.1744424786.

The spelling of 3319581 in words is "three million, three hundred nineteen thousand, five hundred eighty-one".