41890913 has 2 divisors, whose sum is σ = 41890914. Its totient is φ = 41890912.

The previous prime is 41890859. The next prime is 41890931. The reversal of 41890913 is 31909814.

Together with next prime (41890931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25472209 + 16418704 = 5047^2 + 4052^2 .

It is a cyclic number.

It is not a de Polignac number, because 41890913 - 2¹⁴ = 41874529 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (41890943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20945456 + 20945457.

It is an arithmetic number, because the mean of its divisors is an integer number (20945457).

Almost surely, 2^41890913 is an apocalyptic number.

It is an amenable number.

41890913 is a deficient number, since it is larger than the sum of its proper divisors (1).

41890913 is an equidigital number, since it uses as much as digits as its factorization.

41890913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 41890913 is about 6472.3189816325. The cubic root of 41890913 is about 347.3014596602.

The spelling of 41890913 in words is "forty-one million, eight hundred ninety thousand, nine hundred thirteen".