41781407 has 2 divisors, whose sum is σ = 41781408. Its totient is φ = 41781406.

The previous prime is 41781391. The next prime is 41781413. The reversal of 41781407 is 70418714.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41781407 - 2⁴ = 41781391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41781457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20890703 + 20890704.

It is an arithmetic number, because the mean of its divisors is an integer number (20890704).

Almost surely, 2^41781407 is an apocalyptic number.

41781407 is a deficient number, since it is larger than the sum of its proper divisors (1).

41781407 is an equidigital number, since it uses as much as digits as its factorization.

41781407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 41781407 is about 6463.8538813931. The cubic root of 41781407 is about 346.9985715295.

The spelling of 41781407 in words is "forty-one million, seven hundred eighty-one thousand, four hundred seven".