4536409 has 4 divisors (see below), whose sum is σ = 4546000. Its totient is φ = 4526820.

The previous prime is 4536407. The next prime is 4536431. The reversal of 4536409 is 9046354.

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 4536409 - 2¹ = 4536407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4536401) 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, 4047 + ... + 5044.

It is an arithmetic number, because the mean of its divisors is an integer number (1136500).

Almost surely, 2^4536409 is an apocalyptic number.

It is an amenable number.

4536409 is a deficient number, since it is larger than the sum of its proper divisors (9591).

4536409 is an equidigital number, since it uses as much as digits as its factorization.

4536409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9590.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 4536409 is about 2129.8847386655. The cubic root of 4536409 is about 165.5404257419.

The spelling of 4536409 in words is "four million, five hundred thirty-six thousand, four hundred nine".