99797097 has 8 divisors (see below), whose sum is σ = 133195744. Its totient is φ = 66464928.

The previous prime is 99797083. The next prime is 99797111. The reversal of 99797097 is 79079799.

It is an interprime number because it is at equal distance from previous prime (99797083) and next prime (99797111).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99797097 - 2⁸ = 99796841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99797057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13003 + ... + 19200.

It is an arithmetic number, because the mean of its divisors is an integer number (16649468).

Almost surely, 2^99797097 is an apocalyptic number.

It is an amenable number.

99797097 is a deficient number, since it is larger than the sum of its proper divisors (33398647).

99797097 is a wasteful number, since it uses less digits than its factorization.

99797097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33239.

The product of its (nonzero) digits is 2250423, while the sum is 57.

The square root of 99797097 is about 9989.8496985690. The cubic root of 99797097 is about 463.8447400303.

The spelling of 99797097 in words is "ninety-nine million, seven hundred ninety-seven thousand, ninety-seven".