41958991 has 2 divisors, whose sum is σ = 41958992. Its totient is φ = 41958990.

The previous prime is 41958989. The next prime is 41958997. The reversal of 41958991 is 19985914.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41958991 - 2¹ = 41958989 is a prime.

Together with 41958989, 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 (41958997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20979495 + 20979496.

It is an arithmetic number, because the mean of its divisors is an integer number (20979496).

Almost surely, 2^41958991 is an apocalyptic number.

41958991 is a deficient number, since it is larger than the sum of its proper divisors (1).

41958991 is an equidigital number, since it uses as much as digits as its factorization.

41958991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 46.

The square root of 41958991 is about 6477.5760126763. The cubic root of 41958991 is about 347.4894940150.

The spelling of 41958991 in words is "forty-one million, nine hundred fifty-eight thousand, nine hundred ninety-one".