799888997 has 2 divisors, whose sum is σ = 799888998. Its totient is φ = 799888996.

The previous prime is 799888987. The next prime is 799889023.

799888997 is nontrivially palindromic in base 10.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 770284516 + 29604481 = 27754^2 + 5441^2 .

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 799888997 - 2⁸ = 799888741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (799888907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399944498 + 399944499.

It is an arithmetic number, because the mean of its divisors is an integer number (399944499).

Almost surely, 2^799888997 is an apocalyptic number.

It is an amenable number.

799888997 is a deficient number, since it is larger than the sum of its proper divisors (1).

799888997 is an equidigital number, since it uses as much as digits as its factorization.

799888997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164602368, while the sum is 74.

The square root of 799888997 is about 28282.3089050381. The cubic root of 799888997 is about 928.2748288795.

The spelling of 799888997 in words is "seven hundred ninety-nine million, eight hundred eighty-eight thousand, nine hundred ninety-seven".