43097573 has 2 divisors, whose sum is σ = 43097574. Its totient is φ = 43097572.

The previous prime is 43097531. The next prime is 43097611. The reversal of 43097573 is 37579034.

It is an a-pointer prime, because the next prime (43097611) can be obtained adding 43097573 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24581764 + 18515809 = 4958^2 + 4303^2 .

It is a cyclic number.

It is not a de Polignac number, because 43097573 - 2²⁰ = 42048997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43097503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21548786 + 21548787.

It is an arithmetic number, because the mean of its divisors is an integer number (21548787).

Almost surely, 2^43097573 is an apocalyptic number.

It is an amenable number.

43097573 is a deficient number, since it is larger than the sum of its proper divisors (1).

43097573 is an equidigital number, since it uses as much as digits as its factorization.

43097573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 43097573 is about 6564.8741800586. The cubic root of 43097573 is about 350.6045958261.

The spelling of 43097573 in words is "forty-three million, ninety-seven thousand, five hundred seventy-three".