678700611 has 6 divisors (see below), whose sum is σ = 980345340. Its totient is φ = 452467068.

The previous prime is 678700609. The next prime is 678700619. The reversal of 678700611 is 116007876.

It is a happy number.

It is not a de Polignac number, because 678700611 - 2¹ = 678700609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (678700619) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37705581 + ... + 37705598.

It is an arithmetic number, because the mean of its divisors is an integer number (163390890).

Almost surely, 2^678700611 is an apocalyptic number.

678700611 is a deficient number, since it is larger than the sum of its proper divisors (301644729).

678700611 is a wasteful number, since it uses less digits than its factorization.

678700611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75411185 (or 75411182 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 678700611 is about 26051.8830605390. The cubic root of 678700611 is about 878.8054604093.

The spelling of 678700611 in words is "six hundred seventy-eight million, seven hundred thousand, six hundred eleven".