678004107 has 16 divisors (see below), whose sum is σ = 986850432. Its totient is φ = 410635520.

The previous prime is 678004057. The next prime is 678004121. The reversal of 678004107 is 701400876.

It is a cyclic number.

It is not a de Polignac number, because 678004107 - 2¹⁶ = 677938571 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (678004147) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 49948 + ... + 62054.

It is an arithmetic number, because the mean of its divisors is an integer number (61678152).

Almost surely, 2^678004107 is an apocalyptic number.

678004107 is a deficient number, since it is larger than the sum of its proper divisors (308846325).

678004107 is a wasteful number, since it uses less digits than its factorization.

678004107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13818.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 678004107 is about 26038.5119966560. The cubic root of 678004107 is about 878.5047382104.

The spelling of 678004107 in words is "six hundred seventy-eight million, four thousand, one hundred seven".