816888 has 32 divisors (see below), whose sum is σ = 2068560. Its totient is φ = 268800.

The previous prime is 816887. The next prime is 816899. The reversal of 816888 is 888618.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

816888 is a modest number, since divided by 888 gives 816 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816883) 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, 2256 + ... + 2592.

2⁸¹⁶⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

816888 is an abundant number, since it is smaller than the sum of its proper divisors (1251672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

816888 is a wasteful number, since it uses less digits than its factorization.

816888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447 (or 443 counting only the distinct ones).

The product of its digits is 24576, while the sum is 39.

The square root of 816888 is about 903.8185658637. The cubic root of 816888 is about 93.4804595653.

It can be divided in two parts, 8168 and 88, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 816888 in words is "eight hundred sixteen thousand, eight hundred eighty-eight".