677021670 has 96 divisors (see below), whose sum is σ = 1939889952. Its totient is φ = 162763776.

The previous prime is 677021669. The next prime is 677021677. The reversal of 677021670 is 76120776.

677021670 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677021677) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43582 + ... + 57038.

It is an arithmetic number, because the mean of its divisors is an integer number (20207187).

Almost surely, 2^677021670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677021670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (969944976).

677021670 is an abundant number, since it is smaller than the sum of its proper divisors (1262868282).

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

677021670 is a wasteful number, since it uses less digits than its factorization.

677021670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13526 (or 13523 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 677021670 is about 26019.6400820611. The cubic root of 677021670 is about 878.0802113992.

The spelling of 677021670 in words is "six hundred seventy-seven million, twenty-one thousand, six hundred seventy".