41722591 has 4 divisors (see below), whose sum is σ = 41736384. Its totient is φ = 41708800.

The previous prime is 41722579. The next prime is 41722609. The reversal of 41722591 is 19522714.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 41722591 - 2⁷ = 41722463 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41722531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175 + ... + 9136.

It is an arithmetic number, because the mean of its divisors is an integer number (10434096).

Almost surely, 2^41722591 is an apocalyptic number.

41722591 is a deficient number, since it is larger than the sum of its proper divisors (13793).

41722591 is an equidigital number, since it uses as much as digits as its factorization.

41722591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13792.

The product of its digits is 5040, while the sum is 31.

The square root of 41722591 is about 6459.3026713415. The cubic root of 41722591 is about 346.8356709028.

It can be divided in two parts, 417225 and 91, that added together give a square (417316 = 646²).

The spelling of 41722591 in words is "forty-one million, seven hundred twenty-two thousand, five hundred ninety-one".