818814982 has 4 divisors (see below), whose sum is σ = 1228222476. Its totient is φ = 409407490.

The previous prime is 818814959. The next prime is 818815001. The reversal of 818814982 is 289418818.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204703744 + ... + 204703747.

It is an arithmetic number, because the mean of its divisors is an integer number (307055619).

Almost surely, 2^818814982 is an apocalyptic number.

818814982 is a deficient number, since it is larger than the sum of its proper divisors (409407494).

818814982 is a wasteful number, since it uses less digits than its factorization.

818814982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409407493.

The product of its digits is 294912, while the sum is 49.

The square root of 818814982 is about 28614.9433338597. The cubic root of 818814982 is about 935.5390647854.

It can be divided in two parts, 8188 and 14982, that multiplied together give a triangular number (122672616 = T₁₅₆₆₃).

The spelling of 818814982 in words is "eight hundred eighteen million, eight hundred fourteen thousand, nine hundred eighty-two".