43303073 has 4 divisors (see below), whose sum is σ = 47239728. Its totient is φ = 39366420.

The previous prime is 43303019. The next prime is 43303079. The reversal of 43303073 is 37030334.

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 43303073 - 2²⁰ = 42254497 is a prime.

It is a super-2 number, since 2×43303073² = 3750312262486658, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43303079) 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, 1968311 + ... + 1968332.

It is an arithmetic number, because the mean of its divisors is an integer number (11809932).

Almost surely, 2^43303073 is an apocalyptic number.

It is an amenable number.

43303073 is a deficient number, since it is larger than the sum of its proper divisors (3936655).

43303073 is a wasteful number, since it uses less digits than its factorization.

43303073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3936654.

The product of its (nonzero) digits is 2268, while the sum is 23.

The square root of 43303073 is about 6580.5070473331. The cubic root of 43303073 is about 351.1609692331.

The spelling of 43303073 in words is "forty-three million, three hundred three thousand, seventy-three".