36440003 has 2 divisors, whose sum is σ = 36440004. Its totient is φ = 36440002.

The previous prime is 36439999. The next prime is 36440017. The reversal of 36440003 is 30004463.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (30004463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36440003 - 2² = 36439999 is a prime.

It is not a weakly prime, because it can be changed into another prime (36440023) 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, 18220001 + 18220002.

It is an arithmetic number, because the mean of its divisors is an integer number (18220002).

Almost surely, 2^36440003 is an apocalyptic number.

36440003 is a deficient number, since it is larger than the sum of its proper divisors (1).

36440003 is an equidigital number, since it uses as much as digits as its factorization.

36440003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 36440003 is about 6036.5555576007. Note that the first 5 decimals coincide. The cubic root of 36440003 is about 331.5325199555.

Adding to 36440003 its reverse (30004463), we get a palindrome (66444466).

The spelling of 36440003 in words is "thirty-six million, four hundred forty thousand, three".