818604936 has 48 divisors (see below), whose sum is σ = 2218785660. Its totient is φ = 272655360.

The previous prime is 818604931. The next prime is 818604947. The reversal of 818604936 is 639406818.

818604936 is a `hidden beast` number, since 8 + 1 + 8 + 604 + 9 + 36 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 546156900 + 272448036 = 23370^2 + 16506^2 .

It is a super-2 number, since 2×818604936² = 1340228082487128192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 818604891 and 818604900.

It is not an unprimeable number, because it can be changed into a prime (818604931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 108156 + ... + 115476.

Almost surely, 2^818604936 is an apocalyptic number.

It is an amenable number.

818604936 is an abundant number, since it is smaller than the sum of its proper divisors (1400180724).

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

818604936 is a wasteful number, since it uses less digits than its factorization.

818604936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8886 (or 8879 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 818604936 is about 28611.2728832536. The cubic root of 818604936 is about 935.4590617534.

The spelling of 818604936 in words is "eight hundred eighteen million, six hundred four thousand, nine hundred thirty-six".