41988517 has 2 divisors, whose sum is σ = 41988518. Its totient is φ = 41988516.

The previous prime is 41988493. The next prime is 41988523. The reversal of 41988517 is 71588914.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39955041 + 2033476 = 6321^2 + 1426^2 .

It is a cyclic number.

It is not a de Polignac number, because 41988517 - 2⁷ = 41988389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41988577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20994258 + 20994259.

It is an arithmetic number, because the mean of its divisors is an integer number (20994259).

Almost surely, 2^41988517 is an apocalyptic number.

It is an amenable number.

41988517 is a deficient number, since it is larger than the sum of its proper divisors (1).

41988517 is an equidigital number, since it uses as much as digits as its factorization.

41988517 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 43.

The square root of 41988517 is about 6479.8547051612. The cubic root of 41988517 is about 347.5709828599.

The spelling of 41988517 in words is "forty-one million, nine hundred eighty-eight thousand, five hundred seventeen".