41662891 has 2 divisors, whose sum is σ = 41662892. Its totient is φ = 41662890.

The previous prime is 41662849. The next prime is 41662897. The reversal of 41662891 is 19826614.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41662891 - 2¹³ = 41654699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41662891.

It is not a weakly prime, because it can be changed into another prime (41662897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20831445 + 20831446.

It is an arithmetic number, because the mean of its divisors is an integer number (20831446).

Almost surely, 2^41662891 is an apocalyptic number.

41662891 is a deficient number, since it is larger than the sum of its proper divisors (1).

41662891 is an equidigital number, since it uses as much as digits as its factorization.

41662891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 37.

The square root of 41662891 is about 6454.6797751709. The cubic root of 41662891 is about 346.6701652548.

The spelling of 41662891 in words is "forty-one million, six hundred sixty-two thousand, eight hundred ninety-one".