99100197 has 18 divisors (see below), whose sum is σ = 166516038. Its totient is φ = 56628432.

The previous prime is 99100187. The next prime is 99100217. The reversal of 99100197 is 79100199.

It can be written as a sum of positive squares in only one way, i.e., 89699841 + 9400356 = 9471^2 + 3066^2 .

It is not a de Polignac number, because 99100197 - 2¹⁴ = 99083813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99100187) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 111918 + ... + 112799.

It is an arithmetic number, because the mean of its divisors is an integer number (9250891).

Almost surely, 2^99100197 is an apocalyptic number.

It is an amenable number.

99100197 is a deficient number, since it is larger than the sum of its proper divisors (67415841).

99100197 is a wasteful number, since it uses less digits than its factorization.

99100197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224737 (or 224727 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 36.

The square root of 99100197 is about 9954.9081864174. The cubic root of 99100197 is about 462.7625149080.

The spelling of 99100197 in words is "ninety-nine million, one hundred thousand, one hundred ninety-seven".