798545887 has 2 divisors, whose sum is σ = 798545888. Its totient is φ = 798545886.

The previous prime is 798545873. The next prime is 798545897. The reversal of 798545887 is 788545897.

It is a strong prime.

It is an emirp because it is prime and its reverse (788545897) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-798545887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (798545837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399272943 + 399272944.

It is an arithmetic number, because the mean of its divisors is an integer number (399272944).

Almost surely, 2^798545887 is an apocalyptic number.

798545887 is a deficient number, since it is larger than the sum of its proper divisors (1).

798545887 is an equidigital number, since it uses as much as digits as its factorization.

798545887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22579200, while the sum is 61.

The square root of 798545887 is about 28258.5542269947. The cubic root of 798545887 is about 927.7549760455.

The spelling of 798545887 in words is "seven hundred ninety-eight million, five hundred forty-five thousand, eight hundred eighty-seven".