99107997 has 8 divisors (see below), whose sum is σ = 133629120. Its totient is φ = 65329440.

The previous prime is 99107963. The next prime is 99108013. The reversal of 99107997 is 79970199.

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

It is not a de Polignac number, because 99107997 - 2⁸ = 99107741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99107917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185329 + ... + 185862.

It is an arithmetic number, because the mean of its divisors is an integer number (16703640).

Almost surely, 2^99107997 is an apocalyptic number.

It is an amenable number.

99107997 is a deficient number, since it is larger than the sum of its proper divisors (34521123).

99107997 is a wasteful number, since it uses less digits than its factorization.

99107997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371283.

The product of its (nonzero) digits is 321489, while the sum is 51.

The square root of 99107997 is about 9955.2999452553. The cubic root of 99107997 is about 462.7746556606.

The spelling of 99107997 in words is "ninety-nine million, one hundred seven thousand, nine hundred ninety-seven".