677350128 has 120 divisors (see below), whose sum is σ = 2192182608. Its totient is φ = 178633728.

The previous prime is 677350097. The next prime is 677350189. The reversal of 677350128 is 821053776.

677350128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19500 + ... + 41652.

Almost surely, 2^677350128 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 677350128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1096091304).

677350128 is an abundant number, since it is smaller than the sum of its proper divisors (1514832480).

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

677350128 is a wasteful number, since it uses less digits than its factorization.

677350128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22191 (or 22178 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 677350128 is about 26025.9510489050. The cubic root of 677350128 is about 878.2221890513. Note that the first 3 decimals are identical.

The spelling of 677350128 in words is "six hundred seventy-seven million, three hundred fifty thousand, one hundred twenty-eight".