41491687 has 4 divisors (see below), whose sum is σ = 43675480. Its totient is φ = 39307896.

The previous prime is 41491643. The next prime is 41491729. The reversal of 41491687 is 78619414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78619414 = 2 ⋅39309707.

It is a cyclic number.

It is not a de Polignac number, because 41491687 - 2²³ = 33103079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41491607) 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, 1091868 + ... + 1091905.

It is an arithmetic number, because the mean of its divisors is an integer number (10918870).

Almost surely, 2^41491687 is an apocalyptic number.

41491687 is a deficient number, since it is larger than the sum of its proper divisors (2183793).

41491687 is a wasteful number, since it uses less digits than its factorization.

41491687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183792.

The product of its digits is 48384, while the sum is 40.

The square root of 41491687 is about 6441.4041171161. The cubic root of 41491687 is about 346.1946597511.

The spelling of 41491687 in words is "forty-one million, four hundred ninety-one thousand, six hundred eighty-seven".