678271900 has 18 divisors (see below), whose sum is σ = 1471850240. Its totient is φ = 271308720.

The previous prime is 678271889. The next prime is 678271907. The reversal of 678271900 is 9172876.

It is a super-2 number, since 2×678271900² = 920105540659220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678271907) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3391260 + ... + 3391459.

Almost surely, 2^678271900 is an apocalyptic number.

It is an amenable number.

678271900 is an abundant number, since it is smaller than the sum of its proper divisors (793578340).

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

678271900 is a wasteful number, since it uses less digits than its factorization.

678271900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6782733 (or 6782726 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 678271900 is about 26043.6537375231. The cubic root of 678271900 is about 878.6203847335.

The spelling of 678271900 in words is "six hundred seventy-eight million, two hundred seventy-one thousand, nine hundred".