36554989 has 4 divisors (see below), whose sum is σ = 37069920. Its totient is φ = 36040060.

The previous prime is 36554977. The next prime is 36555007. The reversal of 36554989 is 98945563.

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, and also an emirpimes, since its reverse is a distinct semiprime: 98945563 = 23 ⋅4301981.

It is a cyclic number.

It is not a de Polignac number, because 36554989 - 2¹⁵ = 36522221 is a prime.

It is a super-3 number, since 3×36554989³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36554939) 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, 257359 + ... + 257500.

It is an arithmetic number, because the mean of its divisors is an integer number (9267480).

Almost surely, 2^36554989 is an apocalyptic number.

It is an amenable number.

36554989 is a deficient number, since it is larger than the sum of its proper divisors (514931).

36554989 is an equidigital number, since it uses as much as digits as its factorization.

36554989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514930.

The product of its digits is 1166400, while the sum is 49.

The square root of 36554989 is about 6046.0721960625. The cubic root of 36554989 is about 331.8808694609.

It can be divided in two parts, 36 and 554989, that added together give a square (555025 = 745²).

The spelling of 36554989 in words is "thirty-six million, five hundred fifty-four thousand, nine hundred eighty-nine".