678475 has 12 divisors (see below), whose sum is σ = 961744. Its totient is φ = 465120.

The previous prime is 678463. The next prime is 678479. The reversal of 678475 is 574876.

It is a happy number.

678475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 678475 - 2¹¹ = 676427 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (678479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1764 + ... + 2113.

2⁶⁷⁸⁴⁷⁵ is an apocalyptic number.

678475 is a deficient number, since it is larger than the sum of its proper divisors (283269).

678475 is a wasteful number, since it uses less digits than its factorization.

678475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3894 (or 3889 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 678475 is about 823.6959390455. The cubic root of 678475 is about 87.8708073261.

It can be divided in two parts, 6784 and 75, that added together give a cube (6859 = 19³).

The spelling of 678475 in words is "six hundred seventy-eight thousand, four hundred seventy-five".