681078 has 8 divisors (see below), whose sum is σ = 1362168. Its totient is φ = 227024.

The previous prime is 681067. The next prime is 681089. The reversal of 681078 is 870186.

681078 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 (681067) and next prime (681089).

It is a sphenic number, since it is the product of 3 distinct primes.

681078 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56751 + ... + 56762.

It is an arithmetic number, because the mean of its divisors is an integer number (170271).

2⁶⁸¹⁰⁷⁸ is an apocalyptic number.

681078 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

681078 is a wasteful number, since it uses less digits than its factorization.

681078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113518.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 681078 is about 825.2744997878. The cubic root of 681078 is about 87.9830373641.

The spelling of 681078 in words is "six hundred eighty-one thousand, seventy-eight".