677111 has 2 divisors, whose sum is σ = 677112. Its totient is φ = 677110.

The previous prime is 677107. The next prime is 677113. The reversal of 677111 is 111776.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 677111 - 2² = 677107 is a prime.

Together with 677113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338555 + 338556.

It is an arithmetic number, because the mean of its divisors is an integer number (338556).

2⁶⁷⁷¹¹¹ is an apocalyptic number.

677111 is a deficient number, since it is larger than the sum of its proper divisors (1).

677111 is an equidigital number, since it uses as much as digits as its factorization.

677111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294, while the sum is 23.

The square root of 677111 is about 822.8675470572. The cubic root of 677111 is about 87.8118829294.

Adding to 677111 its reverse (111776), we get a palindrome (788887).

The spelling of 677111 in words is "six hundred seventy-seven thousand, one hundred eleven".