99999297 has 12 divisors (see below), whose sum is σ = 145401984. Its totient is φ = 66223800.

The previous prime is 99999259. The next prime is 99999307. The reversal of 99999297 is 79299999.

It is not a de Polignac number, because 99999297 - 2¹⁶ = 99933761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99999217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35433 + ... + 38150.

It is an arithmetic number, because the mean of its divisors is an integer number (12116832).

Almost surely, 2^99999297 is an apocalyptic number.

It is an amenable number.

99999297 is a deficient number, since it is larger than the sum of its proper divisors (45402687).

99999297 is a wasteful number, since it uses less digits than its factorization.

99999297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73740 (or 73737 counting only the distinct ones).

The product of its digits is 7440174, while the sum is 63.

The square root of 99999297 is about 9999.9648499382. The cubic root of 99999297 is about 464.1577956797.

The spelling of 99999297 in words is "ninety-nine million, nine hundred ninety-nine thousand, two hundred ninety-seven".