36681749 has 8 divisors (see below), whose sum is σ = 39550560. Its totient is φ = 33819696.

The previous prime is 36681737. The next prime is 36681769. The reversal of 36681749 is 94718663.

36681749 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36681749 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36681719) 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, 19634 + ... + 21420.

It is an arithmetic number, because the mean of its divisors is an integer number (4943820).

Almost surely, 2^36681749 is an apocalyptic number.

It is an amenable number.

36681749 is a deficient number, since it is larger than the sum of its proper divisors (2868811).

36681749 is a wasteful number, since it uses less digits than its factorization.

36681749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3379.

The product of its digits is 217728, while the sum is 44.

The square root of 36681749 is about 6056.5459628405. The cubic root of 36681749 is about 332.2640427429.

The spelling of 36681749 in words is "thirty-six million, six hundred eighty-one thousand, seven hundred forty-nine".