818648 has 16 divisors (see below), whose sum is σ = 1584960. Its totient is φ = 396000.

The previous prime is 818621. The next prime is 818659. The reversal of 818648 is 846818.

It is a congruent number.

It is an unprimeable number.

818648 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403 + ... + 1898.

It is an arithmetic number, because the mean of its divisors is an integer number (99060).

2⁸¹⁸⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

818648 is a deficient number, since it is larger than the sum of its proper divisors (766312).

818648 is a wasteful number, since it uses less digits than its factorization.

818648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338 (or 3334 counting only the distinct ones).

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

The square root of 818648 is about 904.7916887328. The cubic root of 818648 is about 93.5475465231.

The spelling of 818648 in words is "eight hundred eighteen thousand, six hundred forty-eight".