43474397 has 2 divisors, whose sum is σ = 43474398. Its totient is φ = 43474396.

The previous prime is 43474373. The next prime is 43474427. The reversal of 43474397 is 79347434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43309561 + 164836 = 6581^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 43474397 - 2¹⁴ = 43458013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43474367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21737198 + 21737199.

It is an arithmetic number, because the mean of its divisors is an integer number (21737199).

Almost surely, 2^43474397 is an apocalyptic number.

It is an amenable number.

43474397 is a deficient number, since it is larger than the sum of its proper divisors (1).

43474397 is an equidigital number, since it uses as much as digits as its factorization.

43474397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 41.

The square root of 43474397 is about 6593.5117350316. The cubic root of 43474397 is about 351.6234701577.

The spelling of 43474397 in words is "forty-three million, four hundred seventy-four thousand, three hundred ninety-seven".