36004621 has 4 divisors (see below), whose sum is σ = 36100000. Its totient is φ = 35909244.

The previous prime is 36004607. The next prime is 36004643. The reversal of 36004621 is 12640063.

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: 12640063 = 167 ⋅75689.

It is a cyclic number.

It is not a de Polignac number, because 36004621 - 2²³ = 27616013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36004592 and 36004601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36004121) 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, 47121 + ... + 47878.

It is an arithmetic number, because the mean of its divisors is an integer number (9025000).

Almost surely, 2^36004621 is an apocalyptic number.

It is an amenable number.

36004621 is a deficient number, since it is larger than the sum of its proper divisors (95379).

36004621 is an equidigital number, since it uses as much as digits as its factorization.

36004621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95378.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 36004621 is about 6000.3850709767. The cubic root of 36004621 is about 330.2068522534.

Adding to 36004621 its reverse (12640063), we get a palindrome (48644684).

The spelling of 36004621 in words is "thirty-six million, four thousand, six hundred twenty-one".