41728391 has 2 divisors, whose sum is σ = 41728392. Its totient is φ = 41728390.

The previous prime is 41728373. The next prime is 41728403. The reversal of 41728391 is 19382714.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41728391 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 (41728321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20864195 + 20864196.

It is an arithmetic number, because the mean of its divisors is an integer number (20864196).

Almost surely, 2^41728391 is an apocalyptic number.

41728391 is a deficient number, since it is larger than the sum of its proper divisors (1).

41728391 is an equidigital number, since it uses as much as digits as its factorization.

41728391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 41728391 is about 6459.7516206120. The cubic root of 41728391 is about 346.8517417623.

The spelling of 41728391 in words is "forty-one million, seven hundred twenty-eight thousand, three hundred ninety-one".