41378891 has 2 divisors, whose sum is σ = 41378892. Its totient is φ = 41378890.

The previous prime is 41378873. The next prime is 41378927. The reversal of 41378891 is 19887314.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 41378891 - 2¹⁴ = 41362507 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (41378851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20689445 + 20689446.

It is an arithmetic number, because the mean of its divisors is an integer number (20689446).

Almost surely, 2^41378891 is an apocalyptic number.

41378891 is a deficient number, since it is larger than the sum of its proper divisors (1).

41378891 is an equidigital number, since it uses as much as digits as its factorization.

41378891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 41.

The square root of 41378891 is about 6432.6426140428. The cubic root of 41378891 is about 345.8806626213.

The spelling of 41378891 in words is "forty-one million, three hundred seventy-eight thousand, eight hundred ninety-one".