16405327 has 4 divisors (see below), whose sum is σ = 16417080. Its totient is φ = 16393576.

The previous prime is 16405313. The next prime is 16405343. The reversal of 16405327 is 72350461.

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

It is a cyclic number.

It is not a de Polignac number, because 16405327 - 2¹¹ = 16403279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16405295 and 16405304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16405307) 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, 3448 + ... + 6685.

It is an arithmetic number, because the mean of its divisors is an integer number (4104270).

Almost surely, 2^16405327 is an apocalyptic number.

16405327 is a deficient number, since it is larger than the sum of its proper divisors (11753).

16405327 is a wasteful number, since it uses less digits than its factorization.

16405327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11752.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 16405327 is about 4050.3489973088. The cubic root of 16405327 is about 254.0943239901.

Adding to 16405327 its reverse (72350461), we get a palindrome (88755788).

The spelling of 16405327 in words is "sixteen million, four hundred five thousand, three hundred twenty-seven".