16432417 has 4 divisors (see below), whose sum is σ = 16440880. Its totient is φ = 16423956.

The previous prime is 16432399. The next prime is 16432439. The reversal of 16432417 is 71423461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 16432417 - 2⁷ = 16432289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16432817) 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, 298 + ... + 5740.

It is an arithmetic number, because the mean of its divisors is an integer number (4110220).

Almost surely, 2^16432417 is an apocalyptic number.

It is an amenable number.

16432417 is a deficient number, since it is larger than the sum of its proper divisors (8463).

16432417 is an equidigital number, since it uses as much as digits as its factorization.

16432417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8462.

The product of its digits is 4032, while the sum is 28.

The square root of 16432417 is about 4053.6917741733. The cubic root of 16432417 is about 254.2341084610.

Adding to 16432417 its reverse (71423461), we get a palindrome (87855878).

The spelling of 16432417 in words is "sixteen million, four hundred thirty-two thousand, four hundred seventeen".