43722563 has 4 divisors (see below), whose sum is σ = 45623568. Its totient is φ = 41821560.

The previous prime is 43722559. The next prime is 43722571. The reversal of 43722563 is 36522734.

43722563 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 an emirpimes, since its reverse is a distinct semiprime: 36522734 = 2 ⋅18261367.

It is a cyclic number.

It is not a de Polignac number, because 43722563 - 2² = 43722559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43722583) by changing a digit.

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, 950468 + ... + 950513.

It is an arithmetic number, because the mean of its divisors is an integer number (11405892).

Almost surely, 2^43722563 is an apocalyptic number.

43722563 is a deficient number, since it is larger than the sum of its proper divisors (1901005).

43722563 is a wasteful number, since it uses less digits than its factorization.

43722563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1901004.

The product of its digits is 30240, while the sum is 32.

The square root of 43722563 is about 6612.3039101360. The cubic root of 43722563 is about 352.2912614911.

The spelling of 43722563 in words is "forty-three million, seven hundred twenty-two thousand, five hundred sixty-three".