798923819 has 2 divisors, whose sum is σ = 798923820. Its totient is φ = 798923818.

The previous prime is 798923743. The next prime is 798923833. The reversal of 798923819 is 918329897.

It is a strong prime.

It is an emirp because it is prime and its reverse (918329897) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-798923819 is a prime.

It is a super-2 number, since 2×798923819² = 1276558537131089522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (798923849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399461909 + 399461910.

It is an arithmetic number, because the mean of its divisors is an integer number (399461910).

Almost surely, 2^798923819 is an apocalyptic number.

798923819 is a deficient number, since it is larger than the sum of its proper divisors (1).

798923819 is an equidigital number, since it uses as much as digits as its factorization.

798923819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 56.

The square root of 798923819 is about 28265.2404730616. The cubic root of 798923819 is about 927.9013141163.

The spelling of 798923819 in words is "seven hundred ninety-eight million, nine hundred twenty-three thousand, eight hundred nineteen".