99257197 has 16 divisors (see below), whose sum is σ = 113037120. Its totient is φ = 86400000.

The previous prime is 99257189. The next prime is 99257209. The reversal of 99257197 is 79175299.

It is a cyclic number.

It is not a de Polignac number, because 99257197 - 2³ = 99257189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99257197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99257107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61197 + ... + 62797.

It is an arithmetic number, because the mean of its divisors is an integer number (7064820).

Almost surely, 2^99257197 is an apocalyptic number.

It is an amenable number.

99257197 is a deficient number, since it is larger than the sum of its proper divisors (13779923).

99257197 is a wasteful number, since it uses less digits than its factorization.

99257197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884.

The product of its digits is 357210, while the sum is 49.

The square root of 99257197 is about 9962.7906231136. The cubic root of 99257197 is about 463.0067639389.

The spelling of 99257197 in words is "ninety-nine million, two hundred fifty-seven thousand, one hundred ninety-seven".