36647987 has 2 divisors, whose sum is σ = 36647988. Its totient is φ = 36647986.

The previous prime is 36647981. The next prime is 36648011. The reversal of 36647987 is 78974663.

36647987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36647987 - 2¹⁴ = 36631603 is a prime.

It is not a weakly prime, because it can be changed into another prime (36647981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18323993 + 18323994.

It is an arithmetic number, because the mean of its divisors is an integer number (18323994).

Almost surely, 2^36647987 is an apocalyptic number.

36647987 is a deficient number, since it is larger than the sum of its proper divisors (1).

36647987 is an equidigital number, since it uses as much as digits as its factorization.

36647987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 50.

The square root of 36647987 is about 6053.7580889890. The cubic root of 36647987 is about 332.1620724867.

The spelling of 36647987 in words is "thirty-six million, six hundred forty-seven thousand, nine hundred eighty-seven".