41720641 has 2 divisors, whose sum is σ = 41720642. Its totient is φ = 41720640.

The previous prime is 41720633. The next prime is 41720659. The reversal of 41720641 is 14602714.

41720641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30691600 + 11029041 = 5540^2 + 3321^2 .

It is a cyclic number.

It is not a de Polignac number, because 41720641 - 2³ = 41720633 is a prime.

It is a super-2 number, since 2×41720641² = 3481223770901762, which contains 22 as substring.

It is equal to p_2531752 and since 41720641 and 2531752 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (41720671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20860320 + 20860321.

It is an arithmetic number, because the mean of its divisors is an integer number (20860321).

Almost surely, 2^41720641 is an apocalyptic number.

It is an amenable number.

41720641 is a deficient number, since it is larger than the sum of its proper divisors (1).

41720641 is an equidigital number, since it uses as much as digits as its factorization.

41720641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 41720641 is about 6459.1517244914. The cubic root of 41720641 is about 346.8302674345.

The spelling of 41720641 in words is "forty-one million, seven hundred twenty thousand, six hundred forty-one".