36773921 has 2 divisors, whose sum is σ = 36773922. Its totient is φ = 36773920.

The previous prime is 36773917. The next prime is 36773959. The reversal of 36773921 is 12937763.

It is an a-pointer prime, because the next prime (36773959) can be obtained adding 36773921 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35700625 + 1073296 = 5975^2 + 1036^2 .

It is a cyclic number.

It is not a de Polignac number, because 36773921 - 2² = 36773917 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (36773981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18386960 + 18386961.

It is an arithmetic number, because the mean of its divisors is an integer number (18386961).

Almost surely, 2^36773921 is an apocalyptic number.

It is an amenable number.

36773921 is a deficient number, since it is larger than the sum of its proper divisors (1).

36773921 is an equidigital number, since it uses as much as digits as its factorization.

36773921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 38.

The square root of 36773921 is about 6064.1504763652. The cubic root of 36773921 is about 332.5421085985.

The spelling of 36773921 in words is "thirty-six million, seven hundred seventy-three thousand, nine hundred twenty-one".