36729643 has 4 divisors (see below), whose sum is σ = 38326608. Its totient is φ = 35132680.

The previous prime is 36729617. The next prime is 36729647. The reversal of 36729643 is 34692763.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36729643 - 2²¹ = 34632491 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 36729596 and 36729605.

It is not an unprimeable number, because it can be changed into a prime (36729647) 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, 798448 + ... + 798493.

It is an arithmetic number, because the mean of its divisors is an integer number (9581652).

Almost surely, 2^36729643 is an apocalyptic number.

36729643 is a deficient number, since it is larger than the sum of its proper divisors (1596965).

36729643 is a wasteful number, since it uses less digits than its factorization.

36729643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596964.

The product of its digits is 163296, while the sum is 40.

The square root of 36729643 is about 6060.4985768499. The cubic root of 36729643 is about 332.4085881336.

The spelling of 36729643 in words is "thirty-six million, seven hundred twenty-nine thousand, six hundred forty-three".