41678621 has 4 divisors (see below), whose sum is σ = 41717052. Its totient is φ = 41640192.

The previous prime is 41678587. The next prime is 41678629. The reversal of 41678621 is 12687614.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23522500 + 18156121 = 4850^2 + 4261^2 .

It is a cyclic number.

It is not a de Polignac number, because 41678621 - 2¹⁴ = 41662237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41678629) 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, 17540 + ... + 19773.

It is an arithmetic number, because the mean of its divisors is an integer number (10429263).

Almost surely, 2^41678621 is an apocalyptic number.

It is an amenable number.

41678621 is a deficient number, since it is larger than the sum of its proper divisors (38431).

41678621 is a wasteful number, since it uses less digits than its factorization.

41678621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38430.

The product of its digits is 16128, while the sum is 35.

The square root of 41678621 is about 6455.8981559501. The cubic root of 41678621 is about 346.7137886923.

The spelling of 41678621 in words is "forty-one million, six hundred seventy-eight thousand, six hundred twenty-one".