99869407 has 24 divisors (see below), whose sum is σ = 118819008. Its totient is φ = 83550720.

The previous prime is 99869387. The next prime is 99869423. The reversal of 99869407 is 70496899.

It is a de Polignac number, because none of the positive numbers 2^k-99869407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99869447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96163 + ... + 97195.

It is an arithmetic number, because the mean of its divisors is an integer number (4950792).

Almost surely, 2^99869407 is an apocalyptic number.

99869407 is a deficient number, since it is larger than the sum of its proper divisors (18949601).

99869407 is a wasteful number, since it uses less digits than its factorization.

99869407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1119 (or 1108 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 99869407 is about 9993.4682167904. The cubic root of 99869407 is about 463.9567423382.

The spelling of 99869407 in words is "ninety-nine million, eight hundred sixty-nine thousand, four hundred seven".