43473993 has 8 divisors (see below), whose sum is σ = 58507488. Its totient is φ = 28711584.

The previous prime is 43473977. The next prime is 43474009. The reversal of 43473993 is 39937434.

43473993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (43473977) and next prime (43474009).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43473993 - 2⁴ = 43473977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43473923) 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 7 ways as a sum of consecutive naturals, for example, 67396 + ... + 68037.

It is an arithmetic number, because the mean of its divisors is an integer number (7313436).

Almost surely, 2^43473993 is an apocalyptic number.

It is an amenable number.

43473993 is a deficient number, since it is larger than the sum of its proper divisors (15033495).

43473993 is a wasteful number, since it uses less digits than its factorization.

43473993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135543.

The product of its digits is 244944, while the sum is 42.

The square root of 43473993 is about 6593.4810987823. The cubic root of 43473993 is about 351.6223809625.

The spelling of 43473993 in words is "forty-three million, four hundred seventy-three thousand, nine hundred ninety-three".