36884621 has 2 divisors, whose sum is σ = 36884622. Its totient is φ = 36884620.

The previous prime is 36884593. The next prime is 36884629. The reversal of 36884621 is 12648863.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35271721 + 1612900 = 5939^2 + 1270^2 .

It is a cyclic number.

It is not a de Polignac number, because 36884621 - 2¹⁸ = 36622477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36884629) 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 as a sum of consecutive naturals, namely, 18442310 + 18442311.

It is an arithmetic number, because the mean of its divisors is an integer number (18442311).

Almost surely, 2^36884621 is an apocalyptic number.

It is an amenable number.

36884621 is a deficient number, since it is larger than the sum of its proper divisors (1).

36884621 is an equidigital number, since it uses as much as digits as its factorization.

36884621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The square root of 36884621 is about 6073.2710296841. The cubic root of 36884621 is about 332.8754565568.

The spelling of 36884621 in words is "thirty-six million, eight hundred eighty-four thousand, six hundred twenty-one".