36773621 has 2 divisors, whose sum is σ = 36773622. Its totient is φ = 36773620.

The previous prime is 36773617. The next prime is 36773623. The reversal of 36773621 is 12637763.

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., 31080625 + 5692996 = 5575^2 + 2386^2 .

It is an emirp because it is prime and its reverse (12637763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36773621 - 2² = 36773617 is a prime.

Together with 36773623, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36773623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18386810 + 18386811.

It is an arithmetic number, because the mean of its divisors is an integer number (18386811).

Almost surely, 2^36773621 is an apocalyptic number.

It is an amenable number.

36773621 is a deficient number, since it is larger than the sum of its proper divisors (1).

36773621 is an equidigital number, since it uses as much as digits as its factorization.

36773621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 35.

The square root of 36773621 is about 6064.1257407808. The cubic root of 36773621 is about 332.5412043082.

The spelling of 36773621 in words is "thirty-six million, seven hundred seventy-three thousand, six hundred twenty-one".