36118989 has 12 divisors (see below), whose sum is σ = 52353756. Its totient is φ = 23995392.

The previous prime is 36118987. The next prime is 36119009. The reversal of 36118989 is 98981163.

It can be written as a sum of positive squares in 2 ways, for example, as 16670889 + 19448100 = 4083^2 + 4410^2 .

It is not a de Polignac number, because 36118989 - 2¹ = 36118987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36118987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4212 + ... + 9485.

It is an arithmetic number, because the mean of its divisors is an integer number (4362813).

Almost surely, 2^36118989 is an apocalyptic number.

It is an amenable number.

36118989 is a deficient number, since it is larger than the sum of its proper divisors (16234767).

36118989 is a wasteful number, since it uses less digits than its factorization.

36118989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13996 (or 13993 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 36118989 is about 6009.9075700047. The cubic root of 36118989 is about 330.5561146530.

It can be divided in two parts, 36 and 118989, that added together give a square (119025 = 345²).

The spelling of 36118989 in words is "thirty-six million, one hundred eighteen thousand, nine hundred eighty-nine".