36580421 has 2 divisors, whose sum is σ = 36580422. Its totient is φ = 36580420.

The previous prime is 36580417. The next prime is 36580451. The reversal of 36580421 is 12408563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35832196 + 748225 = 5986^2 + 865^2 .

It is an emirp because it is prime and its reverse (12408563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36580421 - 2² = 36580417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36580451) 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, 18290210 + 18290211.

It is an arithmetic number, because the mean of its divisors is an integer number (18290211).

Almost surely, 2^36580421 is an apocalyptic number.

It is an amenable number.

36580421 is a deficient number, since it is larger than the sum of its proper divisors (1).

36580421 is an equidigital number, since it uses as much as digits as its factorization.

36580421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 36580421 is about 6048.1750140022. The cubic root of 36580421 is about 331.9578168934.

Adding to 36580421 its reverse (12408563), we get a palindrome (48988984).

The spelling of 36580421 in words is "thirty-six million, five hundred eighty thousand, four hundred twenty-one".