163948747 has 2 divisors, whose sum is σ = 163948748. Its totient is φ = 163948746.

The previous prime is 163948711. The next prime is 163948751. The reversal of 163948747 is 747849361.

163948747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163948747 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163948747.

It is not a weakly prime, because it can be changed into another prime (163918747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81974373 + 81974374.

It is an arithmetic number, because the mean of its divisors is an integer number (81974374).

Almost surely, 2^163948747 is an apocalyptic number.

163948747 is a deficient number, since it is larger than the sum of its proper divisors (1).

163948747 is an equidigital number, since it uses as much as digits as its factorization.

163948747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 49.

The square root of 163948747 is about 12804.2472250422. The cubic root of 163948747 is about 547.3133404545.

The spelling of 163948747 in words is "one hundred sixty-three million, nine hundred forty-eight thousand, seven hundred forty-seven".