40497117 has 4 divisors (see below), whose sum is σ = 53996160. Its totient is φ = 26998076.

The previous prime is 40497091. The next prime is 40497131. The reversal of 40497117 is 71179404.

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 40497117 - 2¹¹ = 40495069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40497167) 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, 6749517 + ... + 6749522.

It is an arithmetic number, because the mean of its divisors is an integer number (13499040).

Almost surely, 2^40497117 is an apocalyptic number.

It is an amenable number.

40497117 is a deficient number, since it is larger than the sum of its proper divisors (13499043).

40497117 is a wasteful number, since it uses less digits than its factorization.

40497117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13499042.

The product of its (nonzero) digits is 7056, while the sum is 33.

The square root of 40497117 is about 6363.7345167755. The cubic root of 40497117 is about 343.4061239031.

The spelling of 40497117 in words is "forty million, four hundred ninety-seven thousand, one hundred seventeen".