678602408 has 16 divisors (see below), whose sum is σ = 1388050560. Its totient is φ = 308455600.

The previous prime is 678602399. The next prime is 678602411. The reversal of 678602408 is 804206876.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3855608 + ... + 3855783.

It is an arithmetic number, because the mean of its divisors is an integer number (86753160).

Almost surely, 2^678602408 is an apocalyptic number.

It is an amenable number.

678602408 is an abundant number, since it is smaller than the sum of its proper divisors (709448152).

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

678602408 is a wasteful number, since it uses less digits than its factorization.

678602408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711408 (or 7711404 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 678602408 is about 26049.9982341650. The cubic root of 678602408 is about 878.7630727969.

The spelling of 678602408 in words is "six hundred seventy-eight million, six hundred two thousand, four hundred eight".