36835621 has 2 divisors, whose sum is σ = 36835622. Its totient is φ = 36835620.

The previous prime is 36835619. The next prime is 36835637. The reversal of 36835621 is 12653863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36360900 + 474721 = 6030^2 + 689^2 .

It is an emirp because it is prime and its reverse (12653863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36835621 - 2¹ = 36835619 is a prime.

Together with 36835619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36835021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18417810 + 18417811.

It is an arithmetic number, because the mean of its divisors is an integer number (18417811).

Almost surely, 2^36835621 is an apocalyptic number.

It is an amenable number.

36835621 is a deficient number, since it is larger than the sum of its proper divisors (1).

36835621 is an equidigital number, since it uses as much as digits as its factorization.

36835621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 36835621 is about 6069.2356190875. The cubic root of 36835621 is about 332.7279865535.

The spelling of 36835621 in words is "thirty-six million, eight hundred thirty-five thousand, six hundred twenty-one".