677964768 has 48 divisors (see below), whose sum is σ = 1916557776. Its totient is φ = 208604160.

The previous prime is 677964739. The next prime is 677964787. The reversal of 677964768 is 867469776.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270373 + ... + 272868.

It is an arithmetic number, because the mean of its divisors is an integer number (39928287).

Almost surely, 2^677964768 is an apocalyptic number.

It is an amenable number.

677964768 is an abundant number, since it is smaller than the sum of its proper divisors (1238593008).

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

677964768 is a wasteful number, since it uses less digits than its factorization.

677964768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543267 (or 543259 counting only the distinct ones).

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

The square root of 677964768 is about 26037.7565853896. The cubic root of 677964768 is about 878.4877470811.

The spelling of 677964768 in words is "six hundred seventy-seven million, nine hundred sixty-four thousand, seven hundred sixty-eight".