678862716 has 24 divisors (see below), whose sum is σ = 1810300800. Its totient is φ = 193960752.

The previous prime is 678862703. The next prime is 678862729. The reversal of 678862716 is 617268876.

It is an interprime number because it is at equal distance from previous prime (678862703) and next prime (678862729).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4040766 + ... + 4040933.

It is an arithmetic number, because the mean of its divisors is an integer number (75429200).

Almost surely, 2^678862716 is an apocalyptic number.

It is an amenable number.

678862716 is an abundant number, since it is smaller than the sum of its proper divisors (1131438084).

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

678862716 is a wasteful number, since it uses less digits than its factorization.

678862716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8081713 (or 8081711 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 51.

The square root of 678862716 is about 26054.9940702354. The cubic root of 678862716 is about 878.8754212612.

The spelling of 678862716 in words is "six hundred seventy-eight million, eight hundred sixty-two thousand, seven hundred sixteen".