678746976 has 36 divisors (see below), whose sum is σ = 1782381132. Its totient is φ = 226163904.

The previous prime is 678746969. The next prime is 678746977. The reversal of 678746976 is 679647876.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678746977) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253935 + ... + 256593.

It is an arithmetic number, because the mean of its divisors is an integer number (49510587).

Almost surely, 2^678746976 is an apocalyptic number.

It is an amenable number.

678746976 is an abundant number, since it is smaller than the sum of its proper divisors (1103634156).

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

678746976 is an frugal number, since it uses more digits than its factorization.

678746976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331 (or 2664 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 60.

The square root of 678746976 is about 26052.7729042419. The cubic root of 678746976 is about 878.8254716321.

The spelling of 678746976 in words is "six hundred seventy-eight million, seven hundred forty-six thousand, nine hundred seventy-six".