818693882 has 4 divisors (see below), whose sum is σ = 1228040826. Its totient is φ = 409346940.

The previous prime is 818693881. The next prime is 818693921. The reversal of 818693882 is 288396818.

818693882 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 288396818 = 2 ⋅144198409.

It can be written as a sum of positive squares in only one way, i.e., 612513001 + 206180881 = 24749^2 + 14359^2 .

It is not an unprimeable number, because it can be changed into a prime (818693881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204673469 + ... + 204673472.

Almost surely, 2^818693882 is an apocalyptic number.

818693882 is a deficient number, since it is larger than the sum of its proper divisors (409346944).

818693882 is a wasteful number, since it uses less digits than its factorization.

818693882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409346943.

The product of its digits is 1327104, while the sum is 53.

The square root of 818693882 is about 28612.8272283604. The cubic root of 818693882 is about 935.4929414775.

The spelling of 818693882 in words is "eight hundred eighteen million, six hundred ninety-three thousand, eight hundred eighty-two".