16432271 has 2 divisors, whose sum is σ = 16432272. Its totient is φ = 16432270.

The previous prime is 16432261. The next prime is 16432277. The reversal of 16432271 is 17223461.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16432271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16432271.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16432277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8216135 + 8216136.

It is an arithmetic number, because the mean of its divisors is an integer number (8216136).

Almost surely, 2^16432271 is an apocalyptic number.

16432271 is a deficient number, since it is larger than the sum of its proper divisors (1).

16432271 is an equidigital number, since it uses as much as digits as its factorization.

16432271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 26.

The square root of 16432271 is about 4053.6737658573. The cubic root of 16432271 is about 254.2333555125.

The spelling of 16432271 in words is "sixteen million, four hundred thirty-two thousand, two hundred seventy-one".