99911097 has 64 divisors (see below), whose sum is σ = 176198400. Its totient is φ = 55157760.

The previous prime is 99911093. The next prime is 99911183. The reversal of 99911097 is 79011999.

It is not a de Polignac number, because 99911097 - 2² = 99911093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99911093) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 436179 + ... + 436407.

It is an arithmetic number, because the mean of its divisors is an integer number (2753100).

Almost surely, 2^99911097 is an apocalyptic number.

It is an amenable number.

99911097 is a deficient number, since it is larger than the sum of its proper divisors (76287303).

99911097 is a wasteful number, since it uses less digits than its factorization.

99911097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 45927, while the sum is 45.

The square root of 99911097 is about 9995.5538615927. The cubic root of 99911097 is about 464.0212921883.

The spelling of 99911097 in words is "ninety-nine million, nine hundred eleven thousand, ninety-seven".