36164621 has 4 divisors (see below), whose sum is σ = 36191292. Its totient is φ = 36137952.

The previous prime is 36164617. The next prime is 36164659. The reversal of 36164621 is 12646163.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29008996 + 7155625 = 5386^2 + 2675^2 .

It is a cyclic number.

It is not a de Polignac number, because 36164621 - 2² = 36164617 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 (36134621) 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, 11186 + ... + 14051.

It is an arithmetic number, because the mean of its divisors is an integer number (9047823).

Almost surely, 2^36164621 is an apocalyptic number.

It is an amenable number.

36164621 is a deficient number, since it is larger than the sum of its proper divisors (26671).

36164621 is a wasteful number, since it uses less digits than its factorization.

36164621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26670.

The product of its digits is 5184, while the sum is 29.

The square root of 36164621 is about 6013.7027695090. The cubic root of 36164621 is about 330.6952620401.

The spelling of 36164621 in words is "thirty-six million, one hundred sixty-four thousand, six hundred twenty-one".