43996427 has 2 divisors, whose sum is σ = 43996428. Its totient is φ = 43996426.

The previous prime is 43996423. The next prime is 43996453. The reversal of 43996427 is 72469934.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43996427 - 2² = 43996423 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (43996423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21998213 + 21998214.

It is an arithmetic number, because the mean of its divisors is an integer number (21998214).

Almost surely, 2^43996427 is an apocalyptic number.

43996427 is a deficient number, since it is larger than the sum of its proper divisors (1).

43996427 is an equidigital number, since it uses as much as digits as its factorization.

43996427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 44.

The square root of 43996427 is about 6632.9802502344. The cubic root of 43996427 is about 353.0252772629.

The spelling of 43996427 in words is "forty-three million, nine hundred ninety-six thousand, four hundred twenty-seven".