43220063 has 4 divisors (see below), whose sum is σ = 44710440. Its totient is φ = 41729688.

The previous prime is 43220057. The next prime is 43220077. The reversal of 43220063 is 36002234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36002234 = 2 ⋅18001117.

It is a cyclic number.

It is not a de Polignac number, because 43220063 - 2⁸ = 43219807 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 (43220263) 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, 745145 + ... + 745202.

It is an arithmetic number, because the mean of its divisors is an integer number (11177610).

Almost surely, 2^43220063 is an apocalyptic number.

43220063 is a deficient number, since it is larger than the sum of its proper divisors (1490377).

43220063 is a wasteful number, since it uses less digits than its factorization.

43220063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490376.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 43220063 is about 6574.1967570191. The cubic root of 43220063 is about 350.9364392231.

Adding to 43220063 its reverse (36002234), we get a palindrome (79222297).

The spelling of 43220063 in words is "forty-three million, two hundred twenty thousand, sixty-three".