678545877 has 8 divisors (see below), whose sum is σ = 917121664. Its totient is φ = 446167008.

The previous prime is 678545869. The next prime is 678545893. The reversal of 678545877 is 778545876.

678545877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 678545877 - 2³ = 678545869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678545807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1548973 + ... + 1549410.

It is an arithmetic number, because the mean of its divisors is an integer number (114640208).

Almost surely, 2^678545877 is an apocalyptic number.

It is an amenable number.

678545877 is a deficient number, since it is larger than the sum of its proper divisors (238575787).

678545877 is a wasteful number, since it uses less digits than its factorization.

678545877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098459.

The product of its digits is 13171200, while the sum is 57.

The square root of 678545877 is about 26048.9131635084. The cubic root of 678545877 is about 878.7386703220.

Subtracting 678545877 from its reverse (778545876), we obtain a palindrome (99999999).

The spelling of 678545877 in words is "six hundred seventy-eight million, five hundred forty-five thousand, eight hundred seventy-seven".