677678844 has 48 divisors (see below), whose sum is σ = 1638403200. Its totient is φ = 217753536.

The previous prime is 677678809. The next prime is 677678849. The reversal of 677678844 is 448876776.

It is a happy number.

677678844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677678849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297799 + ... + 300065.

It is an arithmetic number, because the mean of its divisors is an integer number (34133400).

Almost surely, 2^677678844 is an apocalyptic number.

It is an amenable number.

677678844 is an abundant number, since it is smaller than the sum of its proper divisors (960724356).

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

677678844 is a wasteful number, since it uses less digits than its factorization.

677678844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162 (or 3160 counting only the distinct ones).

The product of its digits is 12644352, while the sum is 57.

The square root of 677678844 is about 26032.2654411790. The cubic root of 677678844 is about 878.3642322804.

The spelling of 677678844 in words is "six hundred seventy-seven million, six hundred seventy-eight thousand, eight hundred forty-four".