678570 has 16 divisors (see below), whose sum is σ = 1628640. Its totient is φ = 180944.

The previous prime is 678563. The next prime is 678577. The reversal of 678570 is 75876.

678570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (678563) and next prime (678577).

It is the 11-th Bell number.

It is a zygodrome in base 4.

It is not an unprimeable number, because it can be changed into a prime (678577) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11280 + ... + 11339.

It is an arithmetic number, because the mean of its divisors is an integer number (101790).

2⁶⁷⁸⁵⁷⁰ is an apocalyptic number.

678570 is an abundant number, since it is smaller than the sum of its proper divisors (950070).

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

678570 is a wasteful number, since it uses less digits than its factorization.

678570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22629.

The product of its (nonzero) digits is 11760, while the sum is 33.

The square root of 678570 is about 823.7536039375. The cubic root of 678570 is about 87.8749083551.

The spelling of 678570 in words is "six hundred seventy-eight thousand, five hundred seventy".