41949989 has 2 divisors, whose sum is σ = 41949990. Its totient is φ = 41949988.

The previous prime is 41949959. The next prime is 41950031. The reversal of 41949989 is 98994914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28569025 + 13380964 = 5345^2 + 3658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41949989 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41949989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41949949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20974994 + 20974995.

It is an arithmetic number, because the mean of its divisors is an integer number (20974995).

Almost surely, 2^41949989 is an apocalyptic number.

It is an amenable number.

41949989 is a deficient number, since it is larger than the sum of its proper divisors (1).

41949989 is an equidigital number, since it uses as much as digits as its factorization.

41949989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 53.

The square root of 41949989 is about 6476.8811167104. The cubic root of 41949989 is about 347.4646417796.

The spelling of 41949989 in words is "forty-one million, nine hundred forty-nine thousand, nine hundred eighty-nine".