99992897 has 2 divisors, whose sum is σ = 99992898. Its totient is φ = 99992896.

The previous prime is 99992869. The next prime is 99992903. The reversal of 99992897 is 79829999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78127921 + 21864976 = 8839^2 + 4676^2 .

It is an emirp because it is prime and its reverse (79829999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99992897 - 2¹⁶ = 99927361 is a prime.

It is not a weakly prime, because it can be changed into another prime (99992807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49996448 + 49996449.

It is an arithmetic number, because the mean of its divisors is an integer number (49996449).

Almost surely, 2^99992897 is an apocalyptic number.

It is an amenable number.

99992897 is a deficient number, since it is larger than the sum of its proper divisors (1).

99992897 is an equidigital number, since it uses as much as digits as its factorization.

99992897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6613488, while the sum is 62.

The square root of 99992897 is about 9999.6448436932. The cubic root of 99992897 is about 464.1478933659.

The spelling of 99992897 in words is "ninety-nine million, nine hundred ninety-two thousand, eight hundred ninety-seven".