918684968 has 16 divisors (see below), whose sum is σ = 1781932500. Its totient is φ = 443502976.

The previous prime is 918684953. The next prime is 918684973. The reversal of 918684968 is 869486819.

It can be written as a sum of positive squares in 2 ways, for example, as 889113124 + 29571844 = 29818^2 + 5438^2 .

It is a super-2 number, since 2×918684968² = 1687964140858322048, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1979693 + ... + 1980156.

Almost surely, 2^918684968 is an apocalyptic number.

It is an amenable number.

918684968 is a deficient number, since it is larger than the sum of its proper divisors (863247532).

918684968 is a wasteful number, since it uses less digits than its factorization.

918684968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959884 (or 3959880 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 59.

The square root of 918684968 is about 30309.8163636799. The cubic root of 918684968 is about 972.1252047333.

The spelling of 918684968 in words is "nine hundred eighteen million, six hundred eighty-four thousand, nine hundred sixty-eight".