163840007 has 2 divisors, whose sum is σ = 163840008. Its totient is φ = 163840006.

The previous prime is 163839967. The next prime is 163840043. The reversal of 163840007 is 700048361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163840007 - 2⁸ = 163839751 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163840207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81920003 + 81920004.

It is an arithmetic number, because the mean of its divisors is an integer number (81920004).

Almost surely, 2^163840007 is an apocalyptic number.

163840007 is a deficient number, since it is larger than the sum of its proper divisors (1).

163840007 is an equidigital number, since it uses as much as digits as its factorization.

163840007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 163840007 is about 12800.0002734375. Note that the first 3 decimals coincide. The cubic root of 163840007 is about 547.1923107294.

Adding to 163840007 its reverse (700048361), we get a palindrome (863888368).

The spelling of 163840007 in words is "one hundred sixty-three million, eight hundred forty thousand, seven".