678390796 has 12 divisors (see below), whose sum is σ = 1238800752. Its totient is φ = 324447728.

The previous prime is 678390781. The next prime is 678390799. The reversal of 678390796 is 697093876.

It is not an unprimeable number, because it can be changed into a prime (678390799) 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, 3686815 + ... + 3686998.

It is an arithmetic number, because the mean of its divisors is an integer number (103233396).

Almost surely, 2^678390796 is an apocalyptic number.

It is an amenable number.

678390796 is a deficient number, since it is larger than the sum of its proper divisors (560409956).

678390796 is a wasteful number, since it uses less digits than its factorization.

678390796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7373840 (or 7373838 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 55.

The square root of 678390796 is about 26045.9362665273. The cubic root of 678390796 is about 878.6717202652.

It can be divided in two parts, 6783 and 90796, that added together give a palindrome (97579).

The spelling of 678390796 in words is "six hundred seventy-eight million, three hundred ninety thousand, seven hundred ninety-six".