678952 has 8 divisors (see below), whose sum is σ = 1273050. Its totient is φ = 339472.

The previous prime is 678949. The next prime is 678959. The reversal of 678952 is 259876.

It can be written as a sum of positive squares in only one way, i.e., 454276 + 224676 = 674^2 + 474^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (678959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42427 + ... + 42442.

2⁶⁷⁸⁹⁵² is an apocalyptic number.

It is an amenable number.

678952 is a deficient number, since it is larger than the sum of its proper divisors (594098).

678952 is a wasteful number, since it uses less digits than its factorization.

678952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84875 (or 84871 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 678952 is about 823.9854367645. The cubic root of 678952 is about 87.8913949460.

The spelling of 678952 in words is "six hundred seventy-eight thousand, nine hundred fifty-two".