3569989 has 4 divisors (see below), whose sum is σ = 3653056. Its totient is φ = 3486924.

The previous prime is 3569977. The next prime is 3570001. The reversal of 3569989 is 9899653.

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: 9899653 = 199 ⋅49747.

It is an interprime number because it is at equal distance from previous prime (3569977) and next prime (3570001).

It is a cyclic number.

It is not a de Polignac number, because 3569989 - 2⁵ = 3569957 is a prime.

It is an Ulam number.

It is a Duffinian number.

3569989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3569939) 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, 41469 + ... + 41554.

It is an arithmetic number, because the mean of its divisors is an integer number (913264).

Almost surely, 2^3569989 is an apocalyptic number.

It is an amenable number.

3569989 is a deficient number, since it is larger than the sum of its proper divisors (83067).

3569989 is an equidigital number, since it uses as much as digits as its factorization.

3569989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83066.

The product of its digits is 524880, while the sum is 49.

The square root of 3569989 is about 1889.4414518582. The cubic root of 3569989 is about 152.8348139610.

The spelling of 3569989 in words is "three million, five hundred sixty-nine thousand, nine hundred eighty-nine".