36729661 has 4 divisors (see below), whose sum is σ = 36894592. Its totient is φ = 36564732.

The previous prime is 36729659. The next prime is 36729703. The reversal of 36729661 is 16692763.

36729661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 16692763 = 193 ⋅86491.

It is a cyclic number.

It is not a de Polignac number, because 36729661 - 2¹ = 36729659 is a prime.

It is the 6061-st Hogben number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36729361) by changing a digit.

It is a nontrivial repunit in base 6060.

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 3 ways as a sum of consecutive naturals, for example, 82131 + ... + 82576.

It is an arithmetic number, because the mean of its divisors is an integer number (9223648).

Almost surely, 2^36729661 is an apocalyptic number.

It is an amenable number.

36729661 is a deficient number, since it is larger than the sum of its proper divisors (164931).

36729661 is a wasteful number, since it uses less digits than its factorization.

36729661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164930.

The product of its digits is 81648, while the sum is 40.

The square root of 36729661 is about 6060.5000618761. The cubic root of 36729661 is about 332.4086424344.

The spelling of 36729661 in words is "thirty-six million, seven hundred twenty-nine thousand, six hundred sixty-one".