36550989 has 12 divisors (see below), whose sum is σ = 54024256. Its totient is φ = 23800392.

The previous prime is 36550963. The next prime is 36550999. The reversal of 36550989 is 98905563.

36550989 is a `hidden beast` number, since 3 + 6 + 550 + 98 + 9 = 666.

It is not a de Polignac number, because 36550989 - 2⁸ = 36550733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36550939) 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, 46837 + ... + 47610.

Almost surely, 2^36550989 is an apocalyptic number.

It is an amenable number.

36550989 is a deficient number, since it is larger than the sum of its proper divisors (17473267).

36550989 is a wasteful number, since it uses less digits than its factorization.

36550989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94496 (or 94493 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 36550989 is about 6045.7413937415. The cubic root of 36550989 is about 331.8687637544.

The spelling of 36550989 in words is "thirty-six million, five hundred fifty thousand, nine hundred eighty-nine".