678798892 has 12 divisors (see below), whose sum is σ = 1220003680. Its totient is φ = 330226416.

The previous prime is 678798833. The next prime is 678798893. The reversal of 678798892 is 298897876.

It is not an unprimeable number, because it can be changed into a prime (678798893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2293092 + ... + 2293387.

Almost surely, 2^678798892 is an apocalyptic number.

It is an amenable number.

678798892 is a deficient number, since it is larger than the sum of its proper divisors (541204788).

678798892 is a wasteful number, since it uses less digits than its factorization.

678798892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4586520 (or 4586518 counting only the distinct ones).

The product of its digits is 24385536, while the sum is 64.

The square root of 678798892 is about 26053.7692474621. The cubic root of 678798892 is about 878.8478775956.

The spelling of 678798892 in words is "six hundred seventy-eight million, seven hundred ninety-eight thousand, eight hundred ninety-two".