36641797 has 2 divisors, whose sum is σ = 36641798. Its totient is φ = 36641796.

The previous prime is 36641777. The next prime is 36641809. The reversal of 36641797 is 79714663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21031396 + 15610401 = 4586^2 + 3951^2 .

It is a cyclic number.

It is not a de Polignac number, because 36641797 - 2⁷ = 36641669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36641707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18320898 + 18320899.

It is an arithmetic number, because the mean of its divisors is an integer number (18320899).

Almost surely, 2^36641797 is an apocalyptic number.

It is an amenable number.

36641797 is a deficient number, since it is larger than the sum of its proper divisors (1).

36641797 is an equidigital number, since it uses as much as digits as its factorization.

36641797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 43.

The square root of 36641797 is about 6053.2468147268. The cubic root of 36641797 is about 332.1433702407.

The spelling of 36641797 in words is "thirty-six million, six hundred forty-one thousand, seven hundred ninety-seven".