43849427 has 2 divisors, whose sum is σ = 43849428. Its totient is φ = 43849426.

The previous prime is 43849411. The next prime is 43849433. The reversal of 43849427 is 72494834.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 43849427 - 2⁴ = 43849411 is a prime.

It is not a weakly prime, because it can be changed into another prime (43849447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21924713 + 21924714.

It is an arithmetic number, because the mean of its divisors is an integer number (21924714).

Almost surely, 2^43849427 is an apocalyptic number.

43849427 is a deficient number, since it is larger than the sum of its proper divisors (1).

43849427 is an equidigital number, since it uses as much as digits as its factorization.

43849427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 41.

The square root of 43849427 is about 6621.8899870052. The cubic root of 43849427 is about 352.6316648466.

The spelling of 43849427 in words is "forty-three million, eight hundred forty-nine thousand, four hundred twenty-seven".