41781907 has 2 divisors, whose sum is σ = 41781908. Its totient is φ = 41781906.

The previous prime is 41781899. The next prime is 41781913. The reversal of 41781907 is 70918714.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 41781907 - 2³ = 41781899 is a prime.

It is not a weakly prime, because it can be changed into another prime (41781977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20890953 + 20890954.

It is an arithmetic number, because the mean of its divisors is an integer number (20890954).

Almost surely, 2^41781907 is an apocalyptic number.

41781907 is a deficient number, since it is larger than the sum of its proper divisors (1).

41781907 is an equidigital number, since it uses as much as digits as its factorization.

41781907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 41781907 is about 6463.8925578942. The cubic root of 41781907 is about 346.9999557065. Note that the first 4 decimals are identical.

The spelling of 41781907 in words is "forty-one million, seven hundred eighty-one thousand, nine hundred seven".