99432873 has 16 divisors (see below), whose sum is σ = 149385600. Its totient is φ = 65353680.

The previous prime is 99432869. The next prime is 99432919. The reversal of 99432873 is 37823499.

It is a happy number.

It is not a de Polignac number, because 99432873 - 2² = 99432869 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99432803) 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, 24018 + ... + 27851.

It is an arithmetic number, because the mean of its divisors is an integer number (9336600).

Almost surely, 2^99432873 is an apocalyptic number.

It is an amenable number.

99432873 is a deficient number, since it is larger than the sum of its proper divisors (49952727).

99432873 is a wasteful number, since it uses less digits than its factorization.

99432873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51949 (or 51943 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 99432873 is about 9971.6033314608. The cubic root of 99432873 is about 463.2797625669.

The spelling of 99432873 in words is "ninety-nine million, four hundred thirty-two thousand, eight hundred seventy-three".