799858837 has 2 divisors, whose sum is σ = 799858838. Its totient is φ = 799858836.

The previous prime is 799858783. The next prime is 799858841. The reversal of 799858837 is 738858997.

Together with previous prime (799858783) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406788561 + 393070276 = 20169^2 + 19826^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-799858837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (799858847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399929418 + 399929419.

It is an arithmetic number, because the mean of its divisors is an integer number (399929419).

Almost surely, 2^799858837 is an apocalyptic number.

It is an amenable number.

799858837 is a deficient number, since it is larger than the sum of its proper divisors (1).

799858837 is an equidigital number, since it uses as much as digits as its factorization.

799858837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30481920, while the sum is 64.

The square root of 799858837 is about 28281.7757045063. The cubic root of 799858837 is about 928.2631617936.

The spelling of 799858837 in words is "seven hundred ninety-nine million, eight hundred fifty-eight thousand, eight hundred thirty-seven".