41878961 has 2 divisors, whose sum is σ = 41878962. Its totient is φ = 41878960.

The previous prime is 41878951. The next prime is 41878979. The reversal of 41878961 is 16987814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35628961 + 6250000 = 5969^2 + 2500^2 .

It is a cyclic number.

It is not a de Polignac number, because 41878961 - 2⁶ = 41878897 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (41878901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20939480 + 20939481.

It is an arithmetic number, because the mean of its divisors is an integer number (20939481).

Almost surely, 2^41878961 is an apocalyptic number.

It is an amenable number.

41878961 is a deficient number, since it is larger than the sum of its proper divisors (1).

41878961 is an equidigital number, since it uses as much as digits as its factorization.

41878961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 44.

The square root of 41878961 is about 6471.3955990961. The cubic root of 41878961 is about 347.2684267056.

The spelling of 41878961 in words is "forty-one million, eight hundred seventy-eight thousand, nine hundred sixty-one".