43457473 has 4 divisors (see below), whose sum is σ = 44106160. Its totient is φ = 42808788.

The previous prime is 43457471. The next prime is 43457507. The reversal of 43457473 is 37475434.

43457473 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43457473 - 2¹ = 43457471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43457471) 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, 324243 + ... + 324376.

It is an arithmetic number, because the mean of its divisors is an integer number (11026540).

Almost surely, 2^43457473 is an apocalyptic number.

It is an amenable number.

43457473 is a deficient number, since it is larger than the sum of its proper divisors (648687).

43457473 is an equidigital number, since it uses as much as digits as its factorization.

43457473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648686.

The product of its digits is 141120, while the sum is 37.

The square root of 43457473 is about 6592.2282272385. The cubic root of 43457473 is about 351.5778368012.

The spelling of 43457473 in words is "forty-three million, four hundred fifty-seven thousand, four hundred seventy-three".