798391147 has 2 divisors, whose sum is σ = 798391148. Its totient is φ = 798391146.

The previous prime is 798391129. The next prime is 798391151. The reversal of 798391147 is 741193897.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 798391147 - 2¹¹ = 798389099 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 798391147.

It is not a weakly prime, because it can be changed into another prime (798391117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399195573 + 399195574.

It is an arithmetic number, because the mean of its divisors is an integer number (399195574).

Almost surely, 2^798391147 is an apocalyptic number.

798391147 is a deficient number, since it is larger than the sum of its proper divisors (1).

798391147 is an equidigital number, since it uses as much as digits as its factorization.

798391147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 49.

The square root of 798391147 is about 28255.8161623408. The cubic root of 798391147 is about 927.6950462485.

The spelling of 798391147 in words is "seven hundred ninety-eight million, three hundred ninety-one thousand, one hundred forty-seven".