40097117 has 4 divisors (see below), whose sum is σ = 40109916. Its totient is φ = 40084320.

The previous prime is 40097089. The next prime is 40097129. The reversal of 40097117 is 71179004.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 19838116 + 20259001 = 4454^2 + 4501^2 .

It is a cyclic number.

It is not a de Polignac number, because 40097117 - 2¹⁸ = 39834973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40097117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40097147) 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, 1817 + ... + 9137.

It is an arithmetic number, because the mean of its divisors is an integer number (10027479).

Almost surely, 2^40097117 is an apocalyptic number.

It is an amenable number.

40097117 is a deficient number, since it is larger than the sum of its proper divisors (12799).

40097117 is an equidigital number, since it uses as much as digits as its factorization.

40097117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12798.

The product of its (nonzero) digits is 1764, while the sum is 29.

The square root of 40097117 is about 6332.2284387094. The cubic root of 40097117 is about 342.2717451937.

The spelling of 40097117 in words is "forty million, ninety-seven thousand, one hundred seventeen".