41775991 has 2 divisors, whose sum is σ = 41775992. Its totient is φ = 41775990.

The previous prime is 41775983. The next prime is 41776001. The reversal of 41775991 is 19957714.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41775991 - 2³ = 41775983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41775901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20887995 + 20887996.

It is an arithmetic number, because the mean of its divisors is an integer number (20887996).

Almost surely, 2^41775991 is an apocalyptic number.

41775991 is a deficient number, since it is larger than the sum of its proper divisors (1).

41775991 is an equidigital number, since it uses as much as digits as its factorization.

41775991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 43.

The square root of 41775991 is about 6463.4349227017. The cubic root of 41775991 is about 346.9835774160.

The spelling of 41775991 in words is "forty-one million, seven hundred seventy-five thousand, nine hundred ninety-one".