40704163 has 2 divisors, whose sum is σ = 40704164. Its totient is φ = 40704162.

The previous prime is 40704161. The next prime is 40704193. The reversal of 40704163 is 36140704.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40704163 - 2¹ = 40704161 is a prime.

Together with 40704161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40704161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20352081 + 20352082.

It is an arithmetic number, because the mean of its divisors is an integer number (20352082).

Almost surely, 2^40704163 is an apocalyptic number.

40704163 is a deficient number, since it is larger than the sum of its proper divisors (1).

40704163 is an equidigital number, since it uses as much as digits as its factorization.

40704163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 40704163 is about 6379.9814263053. The cubic root of 40704163 is about 343.9903633275.

Adding to 40704163 its reverse (36140704), we get a palindrome (76844867).

The spelling of 40704163 in words is "forty million, seven hundred four thousand, one hundred sixty-three".