678659116 has 6 divisors (see below), whose sum is σ = 1187653460. Its totient is φ = 339329556.

The previous prime is 678659083. The next prime is 678659197. The reversal of 678659116 is 611956876.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 678659116.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84832386 + ... + 84832393.

Almost surely, 2^678659116 is an apocalyptic number.

It is an amenable number.

678659116 is a deficient number, since it is larger than the sum of its proper divisors (508994344).

678659116 is a wasteful number, since it uses less digits than its factorization.

678659116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169664783 (or 169664781 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

The square root of 678659116 is about 26051.0866567980. The cubic root of 678659116 is about 878.7875503151.

The spelling of 678659116 in words is "six hundred seventy-eight million, six hundred fifty-nine thousand, one hundred sixteen".