678099 has 16 divisors (see below), whose sum is σ = 957600. Its totient is φ = 426240.

The previous prime is 678077. The next prime is 678101. The reversal of 678099 is 990876.

678099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 678099 - 2⁹ = 677587 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 678099.

It is not an unprimeable number, because it can be changed into a prime (678199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4477 + ... + 4625.

It is an arithmetic number, because the mean of its divisors is an integer number (59850).

2⁶⁷⁸⁰⁹⁹ is an apocalyptic number.

678099 is a deficient number, since it is larger than the sum of its proper divisors (279501).

678099 is a wasteful number, since it uses less digits than its factorization.

678099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 678099 is about 823.4676678535. The cubic root of 678099 is about 87.8545721276.

The spelling of 678099 in words is "six hundred seventy-eight thousand, ninety-nine".