36004409 has 4 divisors (see below), whose sum is σ = 41147904. Its totient is φ = 30860916.

The previous prime is 36004391. The next prime is 36004417. The reversal of 36004409 is 90440063.

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 an emirpimes, since its reverse is a distinct semiprime: 90440063 = 7 ⋅12920009.

It is a cyclic number.

It is not a de Polignac number, because 36004409 - 2⁸ = 36004153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36004439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2571737 + ... + 2571750.

It is an arithmetic number, because the mean of its divisors is an integer number (10286976).

Almost surely, 2^36004409 is an apocalyptic number.

It is an amenable number.

36004409 is a deficient number, since it is larger than the sum of its proper divisors (5143495).

36004409 is an equidigital number, since it uses as much as digits as its factorization.

36004409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143494.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 36004409 is about 6000.3674054178. The cubic root of 36004409 is about 330.2062041515.

The spelling of 36004409 in words is "thirty-six million, four thousand, four hundred nine".