40027717 has 4 divisors (see below), whose sum is σ = 40067500. Its totient is φ = 39987936.

The previous prime is 40027697. The next prime is 40027721. The reversal of 40027717 is 71772004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 31348801 + 8678916 = 5599^2 + 2946^2 .

It is a cyclic number.

It is not a de Polignac number, because 40027717 - 2¹⁵ = 39994949 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 (40027777) 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 3 ways as a sum of consecutive naturals, for example, 18342 + ... + 20407.

It is an arithmetic number, because the mean of its divisors is an integer number (10016875).

Almost surely, 2^40027717 is an apocalyptic number.

It is an amenable number.

40027717 is a deficient number, since it is larger than the sum of its proper divisors (39783).

40027717 is a wasteful number, since it uses less digits than its factorization.

40027717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39782.

The product of its (nonzero) digits is 2744, while the sum is 28.

The square root of 40027717 is about 6326.7461621279. The cubic root of 40027717 is about 342.0741634360.

The spelling of 40027717 in words is "forty million, twenty-seven thousand, seven hundred seventeen".