41959721 has 4 divisors (see below), whose sum is σ = 41983632. Its totient is φ = 41935812.

The previous prime is 41959717. The next prime is 41959789. The reversal of 41959721 is 12795914.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12795914 = 2 ⋅6397957.

It is a cyclic number.

It is not a de Polignac number, because 41959721 - 2² = 41959717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41919721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9095 + ... + 12908.

It is an arithmetic number, because the mean of its divisors is an integer number (10495908).

Almost surely, 2^41959721 is an apocalyptic number.

It is an amenable number.

41959721 is a deficient number, since it is larger than the sum of its proper divisors (23911).

41959721 is a wasteful number, since it uses less digits than its factorization.

41959721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23910.

The product of its digits is 22680, while the sum is 38.

The square root of 41959721 is about 6477.6323606701. The cubic root of 41959721 is about 347.4915092037.

The spelling of 41959721 in words is "forty-one million, nine hundred fifty-nine thousand, seven hundred twenty-one".