36667987 has 2 divisors, whose sum is σ = 36667988. Its totient is φ = 36667986.

The previous prime is 36667979. The next prime is 36667993. The reversal of 36667987 is 78976663.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36667987 - 2³ = 36667979 is a prime.

It is not a weakly prime, because it can be changed into another prime (36667087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18333993 + 18333994.

It is an arithmetic number, because the mean of its divisors is an integer number (18333994).

Almost surely, 2^36667987 is an apocalyptic number.

36667987 is a deficient number, since it is larger than the sum of its proper divisors (1).

36667987 is an equidigital number, since it uses as much as digits as its factorization.

36667987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2286144, while the sum is 52.

The square root of 36667987 is about 6055.4097301504. The cubic root of 36667987 is about 332.2224853850. Note that the first 3 decimals are identical.

The spelling of 36667987 in words is "thirty-six million, six hundred sixty-seven thousand, nine hundred eighty-seven".