36787987 has 2 divisors, whose sum is σ = 36787988. Its totient is φ = 36787986.

The previous prime is 36787973. The next prime is 36788033. The reversal of 36787987 is 78978763.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36787987 - 2⁷ = 36787859 is a prime.

It is not a weakly prime, because it can be changed into another prime (36787957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18393993 + 18393994.

It is an arithmetic number, because the mean of its divisors is an integer number (18393994).

Almost surely, 2^36787987 is an apocalyptic number.

36787987 is a deficient number, since it is larger than the sum of its proper divisors (1).

36787987 is an equidigital number, since it uses as much as digits as its factorization.

36787987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3556224, while the sum is 55.

The square root of 36787987 is about 6065.3101322191. The cubic root of 36787987 is about 332.5845022379.

The spelling of 36787987 in words is "thirty-six million, seven hundred eighty-seven thousand, nine hundred eighty-seven".