3642569 has 8 divisors (see below), whose sum is σ = 4176960. Its totient is φ = 3111696.

The previous prime is 3642559. The next prime is 3642571. The reversal of 3642569 is 9652463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3642569 - 2¹² = 3638473 is a prime.

It is a super-2 number, since 2×3642569² = 26536617839522, which contains 22 as substring.

It is an Ulam number.

It is a d-powerful number, because it can be written as 3⁵ + 6⁴ + 4² + 2¹³ + 5⁹ + 6⁸ + 9² .

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3642559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1967 + ... + 3339.

It is an arithmetic number, because the mean of its divisors is an integer number (522120).

Almost surely, 2^3642569 is an apocalyptic number.

It is an amenable number.

3642569 is a deficient number, since it is larger than the sum of its proper divisors (534391).

3642569 is a wasteful number, since it uses less digits than its factorization.

3642569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759.

The product of its digits is 38880, while the sum is 35.

The square root of 3642569 is about 1908.5515450205. The cubic root of 3642569 is about 153.8636139991.

The spelling of 3642569 in words is "three million, six hundred forty-two thousand, five hundred sixty-nine".