43332397 has 2 divisors, whose sum is σ = 43332398. Its totient is φ = 43332396.

The previous prime is 43332379. The next prime is 43332479. The reversal of 43332397 is 79323334.

43332397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (43332379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43217476 + 114921 = 6574^2 + 339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43332397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43332307) 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 as a sum of consecutive naturals, namely, 21666198 + 21666199.

It is an arithmetic number, because the mean of its divisors is an integer number (21666199).

Almost surely, 2^43332397 is an apocalyptic number.

It is an amenable number.

43332397 is a deficient number, since it is larger than the sum of its proper divisors (1).

43332397 is an equidigital number, since it uses as much as digits as its factorization.

43332397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 34.

The square root of 43332397 is about 6582.7347660376. The cubic root of 43332397 is about 351.2402178099.

The spelling of 43332397 in words is "forty-three million, three hundred thirty-two thousand, three hundred ninety-seven".