798995831 has 2 divisors, whose sum is σ = 798995832. Its totient is φ = 798995830.

The previous prime is 798995807. The next prime is 798995839. The reversal of 798995831 is 138599897.

It is a strong prime.

It is an emirp because it is prime and its reverse (138599897) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-798995831 is a prime.

It is a super-2 number, since 2×798995831² = 1276788675910761122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (798995839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399497915 + 399497916.

It is an arithmetic number, because the mean of its divisors is an integer number (399497916).

Almost surely, 2^798995831 is an apocalyptic number.

798995831 is a deficient number, since it is larger than the sum of its proper divisors (1).

798995831 is an equidigital number, since it uses as much as digits as its factorization.

798995831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 59.

The square root of 798995831 is about 28266.5143058001. The cubic root of 798995831 is about 927.9291924615.

The spelling of 798995831 in words is "seven hundred ninety-eight million, nine hundred ninety-five thousand, eight hundred thirty-one".