678460 has 12 divisors (see below), whose sum is σ = 1424808. Its totient is φ = 271376.

The previous prime is 678451. The next prime is 678463. The reversal of 678460 is 64876.

678460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678463) 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, 16942 + ... + 16981.

It is an arithmetic number, because the mean of its divisors is an integer number (118734).

2⁶⁷⁸⁴⁶⁰ is an apocalyptic number.

It is an amenable number.

678460 is an abundant number, since it is smaller than the sum of its proper divisors (746348).

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

678460 is a wasteful number, since it uses less digits than its factorization.

678460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33932 (or 33930 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 678460 is about 823.6868336935. The cubic root of 678460 is about 87.8701597602.

The spelling of 678460 in words is "six hundred seventy-eight thousand, four hundred sixty".