41659921 has 8 divisors (see below), whose sum is σ = 43583400. Its totient is φ = 39768960.

The previous prime is 41659901. The next prime is 41659927. The reversal of 41659921 is 12995614.

It can be written as a sum of positive squares in 4 ways, for example, as 1527696 + 40132225 = 1236^2 + 6335^2 .

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 41659921 - 2¹⁵ = 41627153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41659927) 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, 5490 + ... + 10651.

It is an arithmetic number, because the mean of its divisors is an integer number (5447925).

Almost surely, 2^41659921 is an apocalyptic number.

It is an amenable number.

41659921 is a deficient number, since it is larger than the sum of its proper divisors (1923479).

41659921 is a wasteful number, since it uses less digits than its factorization.

41659921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16259.

The product of its digits is 19440, while the sum is 37.

The square root of 41659921 is about 6454.4497054358. The cubic root of 41659921 is about 346.6619274295.

The spelling of 41659921 in words is "forty-one million, six hundred fifty-nine thousand, nine hundred twenty-one".