678600023 has 2 divisors, whose sum is σ = 678600024. Its totient is φ = 678600022.

The previous prime is 678600007. The next prime is 678600047. The reversal of 678600023 is 320006876.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 678600023 - 2⁴ = 678600007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (678600823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339300011 + 339300012.

It is an arithmetic number, because the mean of its divisors is an integer number (339300012).

Almost surely, 2^678600023 is an apocalyptic number.

678600023 is a deficient number, since it is larger than the sum of its proper divisors (1).

678600023 is an equidigital number, since it uses as much as digits as its factorization.

678600023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 678600023 is about 26049.9524567704. The cubic root of 678600023 is about 878.7620433024.

Adding to 678600023 its reverse (320006876), we get a palindrome (998606899).

The spelling of 678600023 in words is "six hundred seventy-eight million, six hundred thousand, twenty-three".