36018821 has 8 divisors (see below), whose sum is σ = 36937824. Its totient is φ = 35103600.

The previous prime is 36018811. The next prime is 36018823. The reversal of 36018821 is 12881063.

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 36018821 - 2⁶ = 36018757 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 (36018823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33746 + ... + 34796.

It is an arithmetic number, because the mean of its divisors is an integer number (4617228).

Almost surely, 2^36018821 is an apocalyptic number.

It is an amenable number.

36018821 is a deficient number, since it is larger than the sum of its proper divisors (919003).

36018821 is a wasteful number, since it uses less digits than its factorization.

36018821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 36018821 is about 6001.5682117260. The cubic root of 36018821 is about 330.2502570616.

Adding to 36018821 its reverse (12881063), we get a palindrome (48899884).

The spelling of 36018821 in words is "thirty-six million, eighteen thousand, eight hundred twenty-one".