677123 has 4 divisors (see below), whose sum is σ = 679728. Its totient is φ = 674520.

The previous prime is 677119. The next prime is 677147. The reversal of 677123 is 321776.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 677123 - 2² = 677119 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677092 and 677101.

It is not an unprimeable number, because it can be changed into a prime (677113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 863 + ... + 1448.

It is an arithmetic number, because the mean of its divisors is an integer number (169932).

2⁶⁷⁷¹²³ is an apocalyptic number.

677123 is a deficient number, since it is larger than the sum of its proper divisors (2605).

677123 is a wasteful number, since it uses less digits than its factorization.

677123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604.

The product of its digits is 1764, while the sum is 26.

The square root of 677123 is about 822.8748385994. The cubic root of 677123 is about 87.8124016708.

Adding to 677123 its reverse (321776), we get a palindrome (998899).

The spelling of 677123 in words is "six hundred seventy-seven thousand, one hundred twenty-three".