43097173 has 4 divisors (see below), whose sum is σ = 49253920. Its totient is φ = 36940428.

The previous prime is 43097141. The next prime is 43097179. The reversal of 43097173 is 37179034.

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 not a de Polignac number, because 43097173 - 2⁵ = 43097141 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 (43097179) 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, 3078363 + ... + 3078376.

It is an arithmetic number, because the mean of its divisors is an integer number (12313480).

Almost surely, 2^43097173 is an apocalyptic number.

It is an amenable number.

43097173 is a deficient number, since it is larger than the sum of its proper divisors (6156747).

43097173 is an equidigital number, since it uses as much as digits as its factorization.

43097173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6156746.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 43097173 is about 6564.8437148191. The cubic root of 43097173 is about 350.6035111380.

The spelling of 43097173 in words is "forty-three million, ninety-seven thousand, one hundred seventy-three".