36307021 has 2 divisors, whose sum is σ = 36307022. Its totient is φ = 36307020.

The previous prime is 36307001. The next prime is 36307039. The reversal of 36307021 is 12070363.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21206025 + 15100996 = 4605^2 + 3886^2 .

It is a cyclic number.

It is not a de Polignac number, because 36307021 - 2⁵ = 36306989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 36306983 and 36307001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36307001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18153510 + 18153511.

It is an arithmetic number, because the mean of its divisors is an integer number (18153511).

Almost surely, 2^36307021 is an apocalyptic number.

It is an amenable number.

36307021 is a deficient number, since it is larger than the sum of its proper divisors (1).

36307021 is an equidigital number, since it uses as much as digits as its factorization.

36307021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 36307021 is about 6025.5307650032. The cubic root of 36307021 is about 331.1287366270.

Adding to 36307021 its reverse (12070363), we get a palindrome (48377384).

It can be divided in two parts, 3630 and 7021, that multiplied together give a triangular number (25486230 = T₇₁₃₉).

The spelling of 36307021 in words is "thirty-six million, three hundred seven thousand, twenty-one".