16327631 has 8 divisors (see below), whose sum is σ = 17934720. Its totient is φ = 14795352.

The previous prime is 16327627. The next prime is 16327637. The reversal of 16327631 is 13672361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16327631 - 2² = 16327627 is a prime.

It is a super-2 number, since 2×16327631² = 533183068144322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16327594 and 16327603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16327637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18245 + ... + 19118.

It is an arithmetic number, because the mean of its divisors is an integer number (2241840).

Almost surely, 2^16327631 is an apocalyptic number.

16327631 is a deficient number, since it is larger than the sum of its proper divisors (1607089).

16327631 is a wasteful number, since it uses less digits than its factorization.

16327631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37405.

The product of its digits is 4536, while the sum is 29.

The square root of 16327631 is about 4040.7463419522. The cubic root of 16327631 is about 253.6925569051.

Adding to 16327631 its reverse (13672361), we get a palindrome (29999992).

The spelling of 16327631 in words is "sixteen million, three hundred twenty-seven thousand, six hundred thirty-one".