677668223 has 2 divisors, whose sum is σ = 677668224. Its totient is φ = 677668222.

The previous prime is 677668183. The next prime is 677668247. The reversal of 677668223 is 322866776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677668223 - 2¹⁴ = 677651839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677668253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338834111 + 338834112.

It is an arithmetic number, because the mean of its divisors is an integer number (338834112).

Almost surely, 2^677668223 is an apocalyptic number.

677668223 is a deficient number, since it is larger than the sum of its proper divisors (1).

677668223 is an equidigital number, since it uses as much as digits as its factorization.

677668223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1016064, while the sum is 47.

The square root of 677668223 is about 26032.0614435354. The cubic root of 677668223 is about 878.3596435014.

The spelling of 677668223 in words is "six hundred seventy-seven million, six hundred sixty-eight thousand, two hundred twenty-three".