816488 has 8 divisors (see below), whose sum is σ = 1530930. Its totient is φ = 408240.

The previous prime is 816469. The next prime is 816499. The reversal of 816488 is 884618.

816488 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 702244 + 114244 = 838^2 + 338^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51023 + ... + 51038.

2⁸¹⁶⁴⁸⁸ is an apocalyptic number.

It is an amenable number.

816488 is a deficient number, since it is larger than the sum of its proper divisors (714442).

816488 is a wasteful number, since it uses less digits than its factorization.

816488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102067 (or 102063 counting only the distinct ones).

The product of its digits is 12288, while the sum is 35.

The square root of 816488 is about 903.5972554186. The cubic root of 816488 is about 93.4651990936.

The spelling of 816488 in words is "eight hundred sixteen thousand, four hundred eighty-eight".