4386409 has 4 divisors (see below), whose sum is σ = 4395904. Its totient is φ = 4376916.

The previous prime is 4386383. The next prime is 4386419. The reversal of 4386409 is 9046834.

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 4386409 - 2⁹ = 4385897 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (4386419) 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, 4017 + ... + 4990.

It is an arithmetic number, because the mean of its divisors is an integer number (1098976).

Almost surely, 2^4386409 is an apocalyptic number.

It is an amenable number.

4386409 is a deficient number, since it is larger than the sum of its proper divisors (9495).

4386409 is an equidigital number, since it uses as much as digits as its factorization.

4386409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9494.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 4386409 is about 2094.3755632646. The cubic root of 4386409 is about 163.6953619937.

The spelling of 4386409 in words is "four million, three hundred eighty-six thousand, four hundred nine".