36543943 has 4 divisors (see below), whose sum is σ = 36652720. Its totient is φ = 36435168.

The previous prime is 36543917. The next prime is 36543959. The reversal of 36543943 is 34934563.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34934563 = 167 ⋅209189.

It is a cyclic number.

It is not a de Polignac number, because 36543943 - 2⁵ = 36543911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36543043) 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, 53883 + ... + 54556.

It is an arithmetic number, because the mean of its divisors is an integer number (9163180).

Almost surely, 2^36543943 is an apocalyptic number.

36543943 is a deficient number, since it is larger than the sum of its proper divisors (108777).

36543943 is a wasteful number, since it uses less digits than its factorization.

36543943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108776.

The product of its digits is 116640, while the sum is 37.

The square root of 36543943 is about 6045.1586414254. The cubic root of 36543943 is about 331.8474374042.

The spelling of 36543943 in words is "thirty-six million, five hundred forty-three thousand, nine hundred forty-three".