36989 has 4 divisors (see below), whose sum is σ = 37824. Its totient is φ = 36156.

The previous prime is 36979. The next prime is 36997. The reversal of 36989 is 98963.

36989 is digitally balanced in base 2, because in such base 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36989 - 2⁴ = 36973 is a prime.

It is a super-2 number, since 2×36989² = 2736372242, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁷ + 6⁴ + 9 + 8⁵ + 9³ .

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

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 36989.

It is not an unprimeable number, because it can be changed into a prime (36919) 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, 347 + ... + 440.

It is an arithmetic number, because the mean of its divisors is an integer number (9456).

2³⁶⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

36989 is a deficient number, since it is larger than the sum of its proper divisors (835).

36989 is an equidigital number, since it uses as much as digits as its factorization.

36989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834.

The product of its digits is 11664, while the sum is 35.

The square root of 36989 is about 192.3252453528. The cubic root of 36989 is about 33.3189159873.

The spelling of 36989 in words is "thirty-six thousand, nine hundred eighty-nine".