36538889 has 8 divisors (see below), whose sum is σ = 37563912. Its totient is φ = 35526400.

The previous prime is 36538867. The next prime is 36538891. The reversal of 36538889 is 98883563.

It can be written as a sum of positive squares in 4 ways, for example, as 2199289 + 34339600 = 1483^2 + 5860^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36538889 - 2⁸ = 36538633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36538819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2939 + ... + 9039.

It is an arithmetic number, because the mean of its divisors is an integer number (4695489).

Almost surely, 2^36538889 is an apocalyptic number.

It is an amenable number.

36538889 is a deficient number, since it is larger than the sum of its proper divisors (1025023).

36538889 is a wasteful number, since it uses less digits than its factorization.

36538889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6267.

The product of its digits is 1244160, while the sum is 50.

The square root of 36538889 is about 6044.7406065108. The cubic root of 36538889 is about 331.8321386147.

The spelling of 36538889 in words is "thirty-six million, five hundred thirty-eight thousand, eight hundred eighty-nine".