99901297 has 16 divisors (see below), whose sum is σ = 108360000. Its totient is φ = 91791360.

The previous prime is 99901279. The next prime is 99901301. The reversal of 99901297 is 79210999.

It is a cyclic number.

It is not a de Polignac number, because 99901297 - 2¹¹ = 99899249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99901097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199954 + ... + 200452.

It is an arithmetic number, because the mean of its divisors is an integer number (6772500).

Almost surely, 2^99901297 is an apocalyptic number.

It is an amenable number.

99901297 is a deficient number, since it is larger than the sum of its proper divisors (8458703).

99901297 is a wasteful number, since it uses less digits than its factorization.

99901297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816.

The product of its (nonzero) digits is 91854, while the sum is 46.

The square root of 99901297 is about 9995.0636316134. The cubic root of 99901297 is about 464.0061201754.

The spelling of 99901297 in words is "ninety-nine million, nine hundred one thousand, two hundred ninety-seven".