4565409 has 4 divisors (see below), whose sum is σ = 6087216. Its totient is φ = 3043604.

The previous prime is 4565399. The next prime is 4565411. The reversal of 4565409 is 9045654.

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.

It is a cyclic number.

It is not a de Polignac number, because 4565409 - 2¹⁷ = 4434337 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 4565409.

It is not an unprimeable number, because it can be changed into a prime (4565609) 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, 760899 + ... + 760904.

It is an arithmetic number, because the mean of its divisors is an integer number (1521804).

Almost surely, 2^4565409 is an apocalyptic number.

It is an amenable number.

4565409 is a deficient number, since it is larger than the sum of its proper divisors (1521807).

4565409 is a wasteful number, since it uses less digits than its factorization.

4565409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521806.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 4565409 is about 2136.6817732175. The cubic root of 4565409 is about 165.8924280075.

The spelling of 4565409 in words is "four million, five hundred sixty-five thousand, four hundred nine".