8218494 has 24 divisors (see below), whose sum is σ = 18024552. Its totient is φ = 2706000.

The previous prime is 8218489. The next prime is 8218499. The reversal of 8218494 is 4948128.

It is an interprime number because it is at equal distance from previous prime (8218489) and next prime (8218499).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8218499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1257 + ... + 4244.

It is an arithmetic number, because the mean of its divisors is an integer number (751023).

Almost surely, 2^8218494 is an apocalyptic number.

8218494 is an abundant number, since it is smaller than the sum of its proper divisors (9806058).

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

8218494 is a wasteful number, since it uses less digits than its factorization.

8218494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592 (or 5589 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 8218494 is about 2866.7915864255. The cubic root of 8218494 is about 201.8044540987.

The spelling of 8218494 in words is "eight million, two hundred eighteen thousand, four hundred ninety-four".