678939000 has 64 divisors (see below), whose sum is σ = 2118299040. Its totient is φ = 181049600.

The previous prime is 678938959. The next prime is 678939007. The reversal of 678939000 is 939876.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678939007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110157 + ... + 116156.

Almost surely, 2^678939000 is an apocalyptic number.

678939000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

678939000 is an abundant number, since it is smaller than the sum of its proper divisors (1439360040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678939000 is a wasteful number, since it uses less digits than its factorization.

678939000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226337 (or 226323 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 678939000 is about 26056.4579327275. The cubic root of 678939000 is about 878.9083398568.

The spelling of 678939000 in words is "six hundred seventy-eight million, nine hundred thirty-nine thousand".