41991073 has 4 divisors (see below), whose sum is σ = 42225840. Its totient is φ = 41756308.

The previous prime is 41991049. The next prime is 41991109. The reversal of 41991073 is 37019914.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41991073 - 2²¹ = 39893921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (41991013) 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, 117115 + ... + 117472.

It is an arithmetic number, because the mean of its divisors is an integer number (10556460).

Almost surely, 2^41991073 is an apocalyptic number.

It is an amenable number.

41991073 is a deficient number, since it is larger than the sum of its proper divisors (234767).

41991073 is a wasteful number, since it uses less digits than its factorization.

41991073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234766.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 41991073 is about 6480.0519288043. The cubic root of 41991073 is about 347.5780353707.

The spelling of 41991073 in words is "forty-one million, nine hundred ninety-one thousand, seventy-three".