41993689 has 4 divisors (see below), whose sum is σ = 44463924. Its totient is φ = 39523456.

The previous prime is 41993683. The next prime is 41993719. The reversal of 41993689 is 98639914.

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 27040000 + 14953689 = 5200^2 + 3867^2 .

It is a cyclic number.

It is not a de Polignac number, because 41993689 - 2¹⁹ = 41469401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41993683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1235092 + ... + 1235125.

It is an arithmetic number, because the mean of its divisors is an integer number (11115981).

Almost surely, 2^41993689 is an apocalyptic number.

It is an amenable number.

41993689 is a deficient number, since it is larger than the sum of its proper divisors (2470235).

41993689 is a wasteful number, since it uses less digits than its factorization.

41993689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470234.

The product of its digits is 419904, while the sum is 49.

The square root of 41993689 is about 6480.2537758949. The cubic root of 41993689 is about 347.5852531370.

The spelling of 41993689 in words is "forty-one million, nine hundred ninety-three thousand, six hundred eighty-nine".