99869207 has 4 divisors (see below), whose sum is σ = 99894480. Its totient is φ = 99843936.

The previous prime is 99869131. The next prime is 99869213. The reversal of 99869207 is 70296899.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99869207 - 2²⁴ = 83091991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99869227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5282 + ... + 15087.

It is an arithmetic number, because the mean of its divisors is an integer number (24973620).

Almost surely, 2^99869207 is an apocalyptic number.

99869207 is a deficient number, since it is larger than the sum of its proper divisors (25273).

99869207 is a wasteful number, since it uses less digits than its factorization.

99869207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25272.

The product of its (nonzero) digits is 489888, while the sum is 50.

The square root of 99869207 is about 9993.4582102493. The cubic root of 99869207 is about 463.9564326290.

The spelling of 99869207 in words is "ninety-nine million, eight hundred sixty-nine thousand, two hundred seven".