678288127 has 6 divisors (see below), whose sum is σ = 745556504. Its totient is φ = 616625460.

The previous prime is 678288119. The next prime is 678288137. The reversal of 678288127 is 721882876.

It is not a de Polignac number, because 678288127 - 2³ = 678288119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678288137) 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, 2802723 + ... + 2802964.

Almost surely, 2^678288127 is an apocalyptic number.

678288127 is a deficient number, since it is larger than the sum of its proper divisors (67268377).

678288127 is a wasteful number, since it uses less digits than its factorization.

678288127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5605709 (or 5605698 counting only the distinct ones).

The product of its digits is 602112, while the sum is 49.

The square root of 678288127 is about 26043.9652702886. The cubic root of 678288127 is about 878.6273913923.

The spelling of 678288127 in words is "six hundred seventy-eight million, two hundred eighty-eight thousand, one hundred twenty-seven".