8213836 has 6 divisors (see below), whose sum is σ = 14374220. Its totient is φ = 4106916.

The previous prime is 8213819. The next prime is 8213851. The reversal of 8213836 is 6383128.

It is a junction number, because it is equal to n+sod(n) for n = 8213798 and 8213807.

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 as a sum of consecutive naturals, namely, 1026726 + ... + 1026733.

Almost surely, 2^8213836 is an apocalyptic number.

It is an amenable number.

8213836 is a deficient number, since it is larger than the sum of its proper divisors (6160384).

8213836 is a wasteful number, since it uses less digits than its factorization.

8213836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053463 (or 2053461 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 8213836 is about 2865.9790648224. The cubic root of 8213836 is about 201.7663212894.

The spelling of 8213836 in words is "eight million, two hundred thirteen thousand, eight hundred thirty-six".