36723643 has 4 divisors (see below), whose sum is σ = 40062168. Its totient is φ = 33385120.

The previous prime is 36723641. The next prime is 36723671. The reversal of 36723643 is 34632763.

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 36723643 - 2¹ = 36723641 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36723599 and 36723608.

It is not an unprimeable number, because it can be changed into a prime (36723641) 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, 1669246 + ... + 1669267.

It is an arithmetic number, because the mean of its divisors is an integer number (10015542).

Almost surely, 2^36723643 is an apocalyptic number.

36723643 is a deficient number, since it is larger than the sum of its proper divisors (3338525).

36723643 is a wasteful number, since it uses less digits than its factorization.

36723643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338524.

The product of its digits is 54432, while the sum is 34.

The square root of 36723643 is about 6060.0035478537. The cubic root of 36723643 is about 332.3904868583.

The spelling of 36723643 in words is "thirty-six million, seven hundred twenty-three thousand, six hundred forty-three".