43495973 has 4 divisors (see below), whose sum is σ = 43918368. Its totient is φ = 43073580.

The previous prime is 43495961. The next prime is 43496017. The reversal of 43495973 is 37959434.

43495973 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 43495973 - 2⁶ = 43495909 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 (43495943) 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, 211043 + ... + 211248.

It is an arithmetic number, because the mean of its divisors is an integer number (10979592).

Almost surely, 2^43495973 is an apocalyptic number.

It is an amenable number.

43495973 is a deficient number, since it is larger than the sum of its proper divisors (422395).

43495973 is a wasteful number, since it uses less digits than its factorization.

43495973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422394.

The product of its digits is 408240, while the sum is 44.

The square root of 43495973 is about 6595.1476859885. The cubic root of 43495973 is about 351.6816298548.

The spelling of 43495973 in words is "forty-three million, four hundred ninety-five thousand, nine hundred seventy-three".