678630152 has 8 divisors (see below), whose sum is σ = 1272431550. Its totient is φ = 339315072.

The previous prime is 678630143. The next prime is 678630167. The reversal of 678630152 is 251036876.

It can be written as a sum of positive squares in only one way, i.e., 511031236 + 167598916 = 22606^2 + 12946^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42414377 + ... + 42414392.

Almost surely, 2^678630152 is an apocalyptic number.

It is an amenable number.

678630152 is a deficient number, since it is larger than the sum of its proper divisors (593801398).

678630152 is a wasteful number, since it uses less digits than its factorization.

678630152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84828775 (or 84828771 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 678630152 is about 26050.5307431538. The cubic root of 678630152 is about 878.7750484251.

The spelling of 678630152 in words is "six hundred seventy-eight million, six hundred thirty thousand, one hundred fifty-two".