816662 has 16 divisors (see below), whose sum is σ = 1527552. Its totient is φ = 318120.

The previous prime is 816653. The next prime is 816667. The reversal of 816662 is 266618.

816662 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (816667) 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, 2498 + ... + 2805.

It is an arithmetic number, because the mean of its divisors is an integer number (95472).

2⁸¹⁶⁶⁶² is an apocalyptic number.

816662 is a deficient number, since it is larger than the sum of its proper divisors (710890).

816662 is a wasteful number, since it uses less digits than its factorization.

816662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323.

The product of its digits is 3456, while the sum is 29.

The square root of 816662 is about 903.6935321225. The cubic root of 816662 is about 93.4718380111.

It can be divided in two parts, 8166 and 62, that added together give a palindrome (8228).

The spelling of 816662 in words is "eight hundred sixteen thousand, six hundred sixty-two".