40971583 has 2 divisors, whose sum is σ = 40971584. Its totient is φ = 40971582.

The previous prime is 40971571. The next prime is 40971599. The reversal of 40971583 is 38517904.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40971583 is a prime.

It is a super-3 number, since 3×40971583³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40971523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20485791 + 20485792.

It is an arithmetic number, because the mean of its divisors is an integer number (20485792).

Almost surely, 2^40971583 is an apocalyptic number.

40971583 is a deficient number, since it is larger than the sum of its proper divisors (1).

40971583 is an equidigital number, since it uses as much as digits as its factorization.

40971583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 40971583 is about 6400.9048579088. The cubic root of 40971583 is about 344.7420405940.

The spelling of 40971583 in words is "forty million, nine hundred seventy-one thousand, five hundred eighty-three".