99432887 has 8 divisors (see below), whose sum is σ = 103856256. Its totient is φ = 95017912.

The previous prime is 99432869. The next prime is 99432919. The reversal of 99432887 is 78823499.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99432887 - 2¹⁴ = 99416503 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 (99432587) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42728 + ... + 44994.

It is an arithmetic number, because the mean of its divisors is an integer number (12982032).

Almost surely, 2^99432887 is an apocalyptic number.

99432887 is a deficient number, since it is larger than the sum of its proper divisors (4423369).

99432887 is a wasteful number, since it uses less digits than its factorization.

99432887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4197.

The product of its digits is 870912, while the sum is 50.

The square root of 99432887 is about 9971.6040334542. The cubic root of 99432887 is about 463.2797843099.

The spelling of 99432887 in words is "ninety-nine million, four hundred thirty-two thousand, eight hundred eighty-seven".