688054 has 8 divisors (see below), whose sum is σ = 1067760. Its totient is φ = 332136.

The previous prime is 688031. The next prime is 688063. The reversal of 688054 is 450886.

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

It is a congruent number.

It is an unprimeable number.

688054 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 3 ways as a sum of consecutive naturals, for example, 5874 + ... + 5989.

It is an arithmetic number, because the mean of its divisors is an integer number (133470).

2⁶⁸⁸⁰⁵⁴ is an apocalyptic number.

688054 is a deficient number, since it is larger than the sum of its proper divisors (379706).

688054 is a wasteful number, since it uses less digits than its factorization.

688054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11894.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 688054 is about 829.4902048849. The cubic root of 688054 is about 88.2824088422.

The spelling of 688054 in words is "six hundred eighty-eight thousand, fifty-four".