41869781 has 2 divisors, whose sum is σ = 41869782. Its totient is φ = 41869780.

The previous prime is 41869769. The next prime is 41869813. The reversal of 41869781 is 18796814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31820881 + 10048900 = 5641^2 + 3170^2 .

It is a cyclic number.

It is not a de Polignac number, because 41869781 - 2¹⁴ = 41853397 is a prime.

It is a super-2 number, since 2×41869781² = 3506157121975922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (41869981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20934890 + 20934891.

It is an arithmetic number, because the mean of its divisors is an integer number (20934891).

Almost surely, 2^41869781 is an apocalyptic number.

It is an amenable number.

41869781 is a deficient number, since it is larger than the sum of its proper divisors (1).

41869781 is an equidigital number, since it uses as much as digits as its factorization.

41869781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 44.

The square root of 41869781 is about 6470.6862850860. The cubic root of 41869781 is about 347.2430507408.

The spelling of 41869781 in words is "forty-one million, eight hundred sixty-nine thousand, seven hundred eighty-one".