4280569 has 4 divisors (see below), whose sum is σ = 4285440. Its totient is φ = 4275700.

The previous prime is 4280561. The next prime is 4280581. The reversal of 4280569 is 9650824.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4280569 - 2³ = 4280561 is a prime.

It is a super-2 number, since 2×4280569² = 36646541927522, which contains 22 as substring.

It is a Duffinian number.

4280569 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4280561) 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, 709 + ... + 3010.

It is an arithmetic number, because the mean of its divisors is an integer number (1071360).

Almost surely, 2^4280569 is an apocalyptic number.

It is an amenable number.

4280569 is a deficient number, since it is larger than the sum of its proper divisors (4871).

4280569 is a wasteful number, since it uses less digits than its factorization.

4280569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4870.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 4280569 is about 2068.9536002530. The cubic root of 4280569 is about 162.3680222291.

The spelling of 4280569 in words is "four million, two hundred eighty thousand, five hundred sixty-nine".