36987 has 4 divisors (see below), whose sum is σ = 49320. Its totient is φ = 24656.

The previous prime is 36979. The next prime is 36997. The reversal of 36987 is 78963.

It is a happy number.

36987 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78963 = 3 ⋅26321.

It is a cyclic number.

It is not a de Polignac number, because 36987 - 2³ = 36979 is a prime.

It is a d-powerful number, because it can be written as 3⁷ + 6⁴ + 9³ + 8⁵ + 7 .

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

36987 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 36987.

It is not an unprimeable number, because it can be changed into a prime (36947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6162 + ... + 6167.

It is an arithmetic number, because the mean of its divisors is an integer number (12330).

2³⁶⁹⁸⁷ is an apocalyptic number.

36987 is a deficient number, since it is larger than the sum of its proper divisors (12333).

36987 is a wasteful number, since it uses less digits than its factorization.

36987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12332.

The product of its digits is 9072, while the sum is 33.

The square root of 36987 is about 192.3200457571. The cubic root of 36987 is about 33.3183154571.

The spelling of 36987 in words is "thirty-six thousand, nine hundred eighty-seven".