40597673 has 2 divisors, whose sum is σ = 40597674. Its totient is φ = 40597672.

The previous prime is 40597643. The next prime is 40597679. The reversal of 40597673 is 37679504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33269824 + 7327849 = 5768^2 + 2707^2 .

It is a cyclic number.

It is not a de Polignac number, because 40597673 - 2¹⁰ = 40596649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40597673.

It is not a weakly prime, because it can be changed into another prime (40597679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20298836 + 20298837.

It is an arithmetic number, because the mean of its divisors is an integer number (20298837).

Almost surely, 2^40597673 is an apocalyptic number.

It is an amenable number.

40597673 is a deficient number, since it is larger than the sum of its proper divisors (1).

40597673 is an equidigital number, since it uses as much as digits as its factorization.

40597673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 158760, while the sum is 41.

The square root of 40597673 is about 6371.6303251209. The cubic root of 40597673 is about 343.6901194649.

The spelling of 40597673 in words is "forty million, five hundred ninety-seven thousand, six hundred seventy-three".