677977722 has 128 divisors (see below), whose sum is σ = 1654732800. Its totient is φ = 205027200.

The previous prime is 677977669. The next prime is 677977759. The reversal of 677977722 is 227779776.

677977722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×677977722³ (a number of 27 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2986573 + ... + 2986799.

It is an arithmetic number, because the mean of its divisors is an integer number (12927600).

Almost surely, 2^677977722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 677977722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827366400).

677977722 is an abundant number, since it is smaller than the sum of its proper divisors (976755078).

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

677977722 is a wasteful number, since it uses less digits than its factorization.

677977722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 363 counting only the distinct ones).

The product of its digits is 3630312, while the sum is 54.

The square root of 677977722 is about 26038.0053383511. The cubic root of 677977722 is about 878.4933421889.

The spelling of 677977722 in words is "six hundred seventy-seven million, nine hundred seventy-seven thousand, seven hundred twenty-two".