677066688 has 140 divisors (see below), whose sum is σ = 2024387112. Its totient is φ = 223741440.

The previous prime is 677066657. The next prime is 677066707. The reversal of 677066688 is 886660776.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 678606 + ... + 679602.

Almost surely, 2^677066688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677066688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1012193556).

677066688 is an abundant number, since it is smaller than the sum of its proper divisors (1347320424).

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

677066688 is a wasteful number, since it uses less digits than its factorization.

677066688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1133 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The square root of 677066688 is about 26020.5051449813. The cubic root of 677066688 is about 878.0996733753.

The spelling of 677066688 in words is "six hundred seventy-seven million, sixty-six thousand, six hundred eighty-eight".