677548728 has 24 divisors (see below), whose sum is σ = 1835028000. Its totient is φ = 225849552.

The previous prime is 677548727. The next prime is 677548747. The reversal of 677548728 is 827845776.

It is a happy number.

677548728 is a `hidden beast` number, since 6 + 77 + 548 + 7 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677548727) 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, 4705128 + ... + 4705271.

It is an arithmetic number, because the mean of its divisors is an integer number (76459500).

Almost surely, 2^677548728 is an apocalyptic number.

It is an amenable number.

677548728 is an abundant number, since it is smaller than the sum of its proper divisors (1157479272).

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

677548728 is a wasteful number, since it uses less digits than its factorization.

677548728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9410411 (or 9410404 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 54.

The square root of 677548728 is about 26029.7661918043. The cubic root of 677548728 is about 878.3080126532.

The spelling of 677548728 in words is "six hundred seventy-seven million, five hundred forty-eight thousand, seven hundred twenty-eight".