36721073 has 2 divisors, whose sum is σ = 36721074. Its totient is φ = 36721072.

The previous prime is 36721067. The next prime is 36721079. The reversal of 36721073 is 37012763.

It is a balanced prime because it is at equal distance from previous prime (36721067) and next prime (36721079).

It can be written as a sum of positive squares in only one way, i.e., 33721249 + 2999824 = 5807^2 + 1732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36721073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (36721079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18360536 + 18360537.

It is an arithmetic number, because the mean of its divisors is an integer number (18360537).

Almost surely, 2^36721073 is an apocalyptic number.

It is an amenable number.

36721073 is a deficient number, since it is larger than the sum of its proper divisors (1).

36721073 is an equidigital number, since it uses as much as digits as its factorization.

36721073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 36721073 is about 6059.7914980633. The cubic root of 36721073 is about 332.3827328755.

The spelling of 36721073 in words is "thirty-six million, seven hundred twenty-one thousand, seventy-three".