818827506 has 48 divisors (see below), whose sum is σ = 2030206464. Its totient is φ = 233646912.

The previous prime is 818827483. The next prime is 818827507. The reversal of 818827506 is 605728818.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (818827507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104191 + ... + 111773.

It is an arithmetic number, because the mean of its divisors is an integer number (42295968).

Almost surely, 2^818827506 is an apocalyptic number.

818827506 is an abundant number, since it is smaller than the sum of its proper divisors (1211378958).

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

818827506 is a wasteful number, since it uses less digits than its factorization.

818827506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8455 (or 8452 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 818827506 is about 28615.1621697309. The cubic root of 818827506 is about 935.5438345367.

The spelling of 818827506 in words is "eight hundred eighteen million, eight hundred twenty-seven thousand, five hundred six".