16471399 has 6 divisors (see below), whose sum is σ = 19160664. Its totient is φ = 14118300.

The previous prime is 16471379. The next prime is 16471409. The reversal of 16471399 is 99317461.

It is not a de Polignac number, because 16471399 - 2¹¹ = 16469351 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 (16471339) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 168027 + ... + 168124.

It is an arithmetic number, because the mean of its divisors is an integer number (3193444).

Almost surely, 2^16471399 is an apocalyptic number.

16471399 is a deficient number, since it is larger than the sum of its proper divisors (2689265).

16471399 is an equidigital number, since it uses as much as digits as its factorization.

16471399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336165 (or 336158 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The square root of 16471399 is about 4058.4971356402. The cubic root of 16471399 is about 254.4349863460.

The spelling of 16471399 in words is "sixteen million, four hundred seventy-one thousand, three hundred ninety-nine".