2036605621 has 4 divisors (see below), whose sum is σ = 2051257600. Its totient is φ = 2021953644.

The previous prime is 2036605589. The next prime is 2036605631. The reversal of 2036605621 is 1265066302.

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 2036605621 - 2⁵ = 2036605589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2036605631) 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, 7325781 + ... + 7326058.

It is an arithmetic number, because the mean of its divisors is an integer number (512814400).

Almost surely, 2^2036605621 is an apocalyptic number.

It is an amenable number.

2036605621 is a deficient number, since it is larger than the sum of its proper divisors (14651979).

2036605621 is a wasteful number, since it uses less digits than its factorization.

2036605621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14651978.

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

The square root of 2036605621 is about 45128.7671114556. The cubic root of 2036605621 is about 1267.5613236802.

The spelling of 2036605621 in words is "two billion, thirty-six million, six hundred five thousand, six hundred twenty-one".