16327799 has 12 divisors (see below), whose sum is σ = 17179680. Its totient is φ = 15506400.

The previous prime is 16327789. The next prime is 16327877. The reversal of 16327799 is 99772361.

It is a happy number.

It is not a de Polignac number, because 16327799 - 2⁸ = 16327543 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16327739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 206642 + ... + 206720.

It is an arithmetic number, because the mean of its divisors is an integer number (1431640).

Almost surely, 2^16327799 is an apocalyptic number.

16327799 is a deficient number, since it is larger than the sum of its proper divisors (851881).

16327799 is an frugal number, since it uses more digits than its factorization.

With its successor (16327800) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (262).

16327799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 191 counting only the distinct ones).

The product of its digits is 142884, while the sum is 44.

The square root of 16327799 is about 4040.7671301375. The cubic root of 16327799 is about 253.6934270089.

Subtracting from 16327799 its sum of digits (44), we obtain a triangular number (16327755 = T₅₇₁₄).

The spelling of 16327799 in words is "sixteen million, three hundred twenty-seven thousand, seven hundred ninety-nine".