678803948 has 24 divisors (see below), whose sum is σ = 1259792352. Its totient is φ = 318927104.

The previous prime is 678803921. The next prime is 678803959. The reversal of 678803948 is 849308876.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 678803948.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36761 + ... + 52047.

It is an arithmetic number, because the mean of its divisors is an integer number (52491348).

Almost surely, 2^678803948 is an apocalyptic number.

678803948 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

678803948 is a deficient number, since it is larger than the sum of its proper divisors (580988404).

678803948 is a wasteful number, since it uses less digits than its factorization.

678803948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15961 (or 15959 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 53.

The square root of 678803948 is about 26053.8662773877. The cubic root of 678803948 is about 878.8500596085.

The spelling of 678803948 in words is "six hundred seventy-eight million, eight hundred three thousand, nine hundred forty-eight".