678054 has 16 divisors (see below), whose sum is σ = 1460592. Its totient is φ = 208608.

The previous prime is 678047. The next prime is 678061. The reversal of 678054 is 450876.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (678047) and next prime (678061).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

678054 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4269 + ... + 4424.

It is an arithmetic number, because the mean of its divisors is an integer number (91287).

2⁶⁷⁸⁰⁵⁴ is an apocalyptic number.

678054 is an abundant number, since it is smaller than the sum of its proper divisors (782538).

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

678054 is a wasteful number, since it uses less digits than its factorization.

678054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8711.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 678054 is about 823.4403439230. The cubic root of 678054 is about 87.8526286832.

The spelling of 678054 in words is "six hundred seventy-eight thousand, fifty-four".