43396541 has 2 divisors, whose sum is σ = 43396542. Its totient is φ = 43396540.

The previous prime is 43396519. The next prime is 43396543. The reversal of 43396541 is 14569334.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27825625 + 15570916 = 5275^2 + 3946^2 .

It is a cyclic number.

It is not a de Polignac number, because 43396541 - 2⁶ = 43396477 is a prime.

Together with 43396543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43396543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21698270 + 21698271.

It is an arithmetic number, because the mean of its divisors is an integer number (21698271).

Almost surely, 2^43396541 is an apocalyptic number.

It is an amenable number.

43396541 is a deficient number, since it is larger than the sum of its proper divisors (1).

43396541 is an equidigital number, since it uses as much as digits as its factorization.

43396541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 35.

The square root of 43396541 is about 6587.6051035259. The cubic root of 43396541 is about 351.4134434360.

The spelling of 43396541 in words is "forty-three million, three hundred ninety-six thousand, five hundred forty-one".