818494 has 8 divisors (see below), whose sum is σ = 1232568. Its totient is φ = 407640.

The previous prime is 818473. The next prime is 818509. The reversal of 818494 is 494818.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12 + ... + 1279.

It is an arithmetic number, because the mean of its divisors is an integer number (154071).

2⁸¹⁸⁴⁹⁴ is an apocalyptic number.

818494 is a deficient number, since it is larger than the sum of its proper divisors (414074).

818494 is a wasteful number, since it uses less digits than its factorization.

818494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610.

The product of its digits is 9216, while the sum is 34.

The square root of 818494 is about 904.7065822685. The cubic root of 818494 is about 93.5416802551.

The spelling of 818494 in words is "eight hundred eighteen thousand, four hundred ninety-four".