41691643 has 8 divisors (see below), whose sum is σ = 50155520. Its totient is φ = 33854760.

The previous prime is 41691623. The next prime is 41691649. The reversal of 41691643 is 34619614.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 41691643 - 2⁹ = 41691131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 41691599 and 41691608.

It is not an unprimeable number, because it can be changed into a prime (41691649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156603 + ... + 156868.

It is an arithmetic number, because the mean of its divisors is an integer number (6269440).

Almost surely, 2^41691643 is an apocalyptic number.

41691643 is a deficient number, since it is larger than the sum of its proper divisors (8463877).

41691643 is a wasteful number, since it uses less digits than its factorization.

41691643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313497.

The product of its digits is 15552, while the sum is 34.

The square root of 41691643 is about 6456.9066123028. The cubic root of 41691643 is about 346.7498938282.

The spelling of 41691643 in words is "forty-one million, six hundred ninety-one thousand, six hundred forty-three".