41661859 has 4 divisors (see below), whose sum is σ = 41675040. Its totient is φ = 41648680.

The previous prime is 41661853. The next prime is 41661931. The reversal of 41661859 is 95816614.

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, and also an emirpimes, since its reverse is a distinct semiprime: 95816614 = 2 ⋅47908307.

It is a cyclic number.

It is not a de Polignac number, because 41661859 - 2⁵ = 41661827 is a prime.

It is a Smith number, since the sum of its digits (40) 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 not an unprimeable number, because it can be changed into a prime (41661853) 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, 1302 + ... + 9220.

It is an arithmetic number, because the mean of its divisors is an integer number (10418760).

Almost surely, 2^41661859 is an apocalyptic number.

41661859 is a deficient number, since it is larger than the sum of its proper divisors (13181).

41661859 is an equidigital number, since it uses as much as digits as its factorization.

41661859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13180.

The product of its digits is 51840, while the sum is 40.

The square root of 41661859 is about 6454.5998326775. The cubic root of 41661859 is about 346.6673028629.

The spelling of 41661859 in words is "forty-one million, six hundred sixty-one thousand, eight hundred fifty-nine".