36187389 has 36 divisors (see below), whose sum is σ = 61959456. Its totient is φ = 19936224.

The previous prime is 36187367. The next prime is 36187421. The reversal of 36187389 is 98378163.

It is a happy number.

36187389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 36187389 - 2⁹ = 36186877 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36187289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 52642 + ... + 53324.

It is an arithmetic number, because the mean of its divisors is an integer number (1721096).

Almost surely, 2^36187389 is an apocalyptic number.

It is an amenable number.

36187389 is a deficient number, since it is larger than the sum of its proper divisors (25772067).

36187389 is a wasteful number, since it uses less digits than its factorization.

36187389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754 (or 722 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 36187389 is about 6015.5954817458. The cubic root of 36187389 is about 330.7646455980.

The spelling of 36187389 in words is "thirty-six million, one hundred eighty-seven thousand, three hundred eighty-nine".