816027 has 4 divisors (see below), whose sum is σ = 1088040. Its totient is φ = 544016.

The previous prime is 816019. The next prime is 816037. The reversal of 816027 is 720618.

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 816027 - 2³ = 816019 is a prime.

It is a D-number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 815988 and 816006.

It is not an unprimeable number, because it can be changed into a prime (816037) 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, 136002 + ... + 136007.

It is an arithmetic number, because the mean of its divisors is an integer number (272010).

2⁸¹⁶⁰²⁷ is an apocalyptic number.

816027 is a deficient number, since it is larger than the sum of its proper divisors (272013).

816027 is a wasteful number, since it uses less digits than its factorization.

816027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272012.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 816027 is about 903.3421278785. The cubic root of 816027 is about 93.4476052165.

Subtracting from 816027 its sum of digits (24), we obtain a triangular number (816003 = T₁₂₇₇).

The spelling of 816027 in words is "eight hundred sixteen thousand, twenty-seven".