41378989 has 2 divisors, whose sum is σ = 41378990. Its totient is φ = 41378988.

The previous prime is 41378971. The next prime is 41379031. The reversal of 41378989 is 98987314.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27910089 + 13468900 = 5283^2 + 3670^2 .

It is a cyclic number.

It is not a de Polignac number, because 41378989 - 2⁵ = 41378957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41378089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20689494 + 20689495.

It is an arithmetic number, because the mean of its divisors is an integer number (20689495).

Almost surely, 2^41378989 is an apocalyptic number.

It is an amenable number.

41378989 is a deficient number, since it is larger than the sum of its proper divisors (1).

41378989 is an equidigital number, since it uses as much as digits as its factorization.

41378989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 49.

The square root of 41378989 is about 6432.6502314365. The cubic root of 41378989 is about 345.8809356774.

The spelling of 41378989 in words is "forty-one million, three hundred seventy-eight thousand, nine hundred eighty-nine".