99432001 has 4 divisors (see below), whose sum is σ = 99485892. Its totient is φ = 99378112.

The previous prime is 99431903. The next prime is 99432017. The reversal of 99432001 is 10023499.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 81993025 + 17438976 = 9055^2 + 4176^2 .

It is a cyclic number.

It is not a de Polignac number, because 99432001 - 2⁷ = 99431873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99432041) 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, 24076 + ... + 27901.

It is an arithmetic number, because the mean of its divisors is an integer number (24871473).

Almost surely, 2^99432001 is an apocalyptic number.

It is an amenable number.

99432001 is a deficient number, since it is larger than the sum of its proper divisors (53891).

99432001 is a wasteful number, since it uses less digits than its factorization.

99432001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53890.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 99432001 is about 9971.5596072029. The cubic root of 99432001 is about 463.2784082826.

The spelling of 99432001 in words is "ninety-nine million, four hundred thirty-two thousand, one".