678065000 has 40 divisors (see below), whose sum is σ = 1588718010. Its totient is φ = 271224000.

The previous prime is 678064999. The next prime is 678065033. The reversal of 678065000 is 560876.

It can be written as a sum of positive squares in 5 ways, for example, as 72216004 + 605848996 = 8498^2 + 24614^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 62807 + ... + 72806.

Almost surely, 2^678065000 is an apocalyptic number.

It is an amenable number.

678065000 is an abundant number, since it is smaller than the sum of its proper divisors (910653010).

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

678065000 is a wasteful number, since it uses less digits than its factorization.

678065000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135639 (or 135620 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 678065000 is about 26039.6812576498. The cubic root of 678065000 is about 878.5310375534.

The spelling of 678065000 in words is "six hundred seventy-eight million, sixty-five thousand".