40817093 has 2 divisors, whose sum is σ = 40817094. Its totient is φ = 40817092.

The previous prime is 40817087. The next prime is 40817141. The reversal of 40817093 is 39071804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34656769 + 6160324 = 5887^2 + 2482^2 .

It is a cyclic number.

It is not a de Polignac number, because 40817093 - 2²⁰ = 39768517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40817033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20408546 + 20408547.

It is an arithmetic number, because the mean of its divisors is an integer number (20408547).

Almost surely, 2^40817093 is an apocalyptic number.

It is an amenable number.

40817093 is a deficient number, since it is larger than the sum of its proper divisors (1).

40817093 is an equidigital number, since it uses as much as digits as its factorization.

40817093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 40817093 is about 6388.8256354357. The cubic root of 40817093 is about 344.3081929095.

Adding to 40817093 its reverse (39071804), we get a palindrome (79888897).

The spelling of 40817093 in words is "forty million, eight hundred seventeen thousand, ninety-three".