36909949 has 2 divisors, whose sum is σ = 36909950. Its totient is φ = 36909948.

The previous prime is 36909911. The next prime is 36909959. The reversal of 36909949 is 94990963.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21252100 + 15657849 = 4610^2 + 3957^2 .

It is an emirp because it is prime and its reverse (94990963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36909949 - 2¹³ = 36901757 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36909959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18454974 + 18454975.

It is an arithmetic number, because the mean of its divisors is an integer number (18454975).

Almost surely, 2^36909949 is an apocalyptic number.

It is an amenable number.

36909949 is a deficient number, since it is larger than the sum of its proper divisors (1).

36909949 is an equidigital number, since it uses as much as digits as its factorization.

36909949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 49.

The square root of 36909949 is about 6075.3558743501. The cubic root of 36909949 is about 332.9516323020.

The spelling of 36909949 in words is "thirty-six million, nine hundred nine thousand, nine hundred forty-nine".