40717917 has 16 divisors (see below), whose sum is σ = 60540480. Its totient is φ = 27047376.

The previous prime is 40717913. The next prime is 40717921. The reversal of 40717917 is 71971704.

It is an interprime number because it is at equal distance from previous prime (40717913) and next prime (40717921).

It is not a de Polignac number, because 40717917 - 2² = 40717913 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40717913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5338 + ... + 10484.

It is an arithmetic number, because the mean of its divisors is an integer number (3783780).

Almost surely, 2^40717917 is an apocalyptic number.

It is an amenable number.

40717917 is a deficient number, since it is larger than the sum of its proper divisors (19822563).

40717917 is a wasteful number, since it uses less digits than its factorization.

40717917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5449 (or 5443 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The square root of 40717917 is about 6381.0592380889. The cubic root of 40717917 is about 344.0291039239.

The spelling of 40717917 in words is "forty million, seven hundred seventeen thousand, nine hundred seventeen".