36321421 has 2 divisors, whose sum is σ = 36321422. Its totient is φ = 36321420.

The previous prime is 36321409. The next prime is 36321433. The reversal of 36321421 is 12412363.

It is a balanced prime because it is at equal distance from previous prime (36321409) and next prime (36321433).

It can be written as a sum of positive squares in only one way, i.e., 27405225 + 8916196 = 5235^2 + 2986^2 .

It is a cyclic number.

It is not a de Polignac number, because 36321421 - 2¹¹ = 36319373 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 36321392 and 36321401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36321221) 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, 18160710 + 18160711.

It is an arithmetic number, because the mean of its divisors is an integer number (18160711).

Almost surely, 2^36321421 is an apocalyptic number.

It is an amenable number.

36321421 is a deficient number, since it is larger than the sum of its proper divisors (1).

36321421 is an equidigital number, since it uses as much as digits as its factorization.

36321421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 36321421 is about 6026.7255620279. The cubic root of 36321421 is about 331.1725079915.

Adding to 36321421 its reverse (12412363), we get a palindrome (48733784).

The spelling of 36321421 in words is "thirty-six million, three hundred twenty-one thousand, four hundred twenty-one".