36789681 has 8 divisors (see below), whose sum is σ = 51634720. Its totient is φ = 23235552.

The previous prime is 36789671. The next prime is 36789689. The reversal of 36789681 is 18698763.

36789681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 36789681 - 2¹⁰ = 36788657 is a prime.

It is a super-4 number, since 4×36789681⁴ (a number of 31 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36789681.

It is not an unprimeable number, because it can be changed into a prime (36789689) 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 7 ways as a sum of consecutive naturals, for example, 322660 + ... + 322773.

It is an arithmetic number, because the mean of its divisors is an integer number (6454340).

Almost surely, 2^36789681 is an apocalyptic number.

It is an amenable number.

36789681 is a deficient number, since it is larger than the sum of its proper divisors (14845039).

36789681 is a wasteful number, since it uses less digits than its factorization.

36789681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645455.

The product of its digits is 435456, while the sum is 48.

The square root of 36789681 is about 6065.4497772218. The cubic root of 36789681 is about 332.5896070701.

The spelling of 36789681 in words is "thirty-six million, seven hundred eighty-nine thousand, six hundred eighty-one".