40917 has 8 divisors (see below), whose sum is σ = 57024. Its totient is φ = 26048.

The previous prime is 40903. The next prime is 40927. The reversal of 40917 is 71904.

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 40917 - 2⁶ = 40853 is a prime.

It is a super-3 number, since 3×40917³ = 205509833325639, which contains 333 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 40893 and 40902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40927) 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 7 ways as a sum of consecutive naturals, for example, 228 + ... + 365.

It is an arithmetic number, because the mean of its divisors is an integer number (7128).

2⁴⁰⁹¹⁷ is an apocalyptic number.

It is an amenable number.

40917 is a deficient number, since it is larger than the sum of its proper divisors (16107).

40917 is a wasteful number, since it uses less digits than its factorization.

40917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 40917 is about 202.2795095901. The cubic root of 40917 is about 34.4588882269.

The spelling of 40917 in words is "forty thousand, nine hundred seventeen".