36720001 has 2 divisors, whose sum is σ = 36720002. Its totient is φ = 36720000.

The previous prime is 36719999. The next prime is 36720011. The reversal of 36720001 is 10002763.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36590401 + 129600 = 6049^2 + 360^2 .

It is an emirp because it is prime and its reverse (10002763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36720001 - 2¹ = 36719999 is a prime.

Together with 36719999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (36720011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18360000 + 18360001.

It is an arithmetic number, because the mean of its divisors is an integer number (18360001).

Almost surely, 2^36720001 is an apocalyptic number.

It is an amenable number.

36720001 is a deficient number, since it is larger than the sum of its proper divisors (1).

36720001 is an equidigital number, since it uses as much as digits as its factorization.

36720001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 36720001 is about 6059.7030455295. The cubic root of 36720001 is about 332.3794984225.

Adding to 36720001 its reverse (10002763), we get a palindrome (46722764).

The spelling of 36720001 in words is "thirty-six million, seven hundred twenty thousand, one".