799696861 has 2 divisors, whose sum is σ = 799696862. Its totient is φ = 799696860.

The previous prime is 799696831. The next prime is 799696903. The reversal of 799696861 is 168696997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 788767225 + 10929636 = 28085^2 + 3306^2 .

It is a cyclic number.

It is not a de Polignac number, because 799696861 - 2¹¹ = 799694813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 799696861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (799696831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399848430 + 399848431.

It is an arithmetic number, because the mean of its divisors is an integer number (399848431).

Almost surely, 2^799696861 is an apocalyptic number.

It is an amenable number.

799696861 is a deficient number, since it is larger than the sum of its proper divisors (1).

799696861 is an equidigital number, since it uses as much as digits as its factorization.

799696861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8817984, while the sum is 61.

The square root of 799696861 is about 28278.9119486588. The cubic root of 799696861 is about 928.2004980262.

The spelling of 799696861 in words is "seven hundred ninety-nine million, six hundred ninety-six thousand, eight hundred sixty-one".