678752 has 12 divisors (see below), whose sum is σ = 1336356. Its totient is φ = 339360.

The previous prime is 678749. The next prime is 678757. The reversal of 678752 is 257876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10574 + ... + 10637.

It is an arithmetic number, because the mean of its divisors is an integer number (111363).

2⁶⁷⁸⁷⁵² is an apocalyptic number.

It is an amenable number.

678752 is a deficient number, since it is larger than the sum of its proper divisors (657604).

678752 is a wasteful number, since it uses less digits than its factorization.

678752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21221 (or 21213 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 678752 is about 823.8640664576. The cubic root of 678752 is about 87.8827639945.

The spelling of 678752 in words is "six hundred seventy-eight thousand, seven hundred fifty-two".