677129 has 4 divisors (see below), whose sum is σ = 691584. Its totient is φ = 662676.

The previous prime is 677119. The next prime is 677147. The reversal of 677129 is 921776.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 677129 - 2⁴ = 677113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 677095 and 677104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677119) 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, 7157 + ... + 7250.

It is an arithmetic number, because the mean of its divisors is an integer number (172896).

2⁶⁷⁷¹²⁹ is an apocalyptic number.

It is an amenable number.

677129 is a deficient number, since it is larger than the sum of its proper divisors (14455).

677129 is a wasteful number, since it uses less digits than its factorization.

677129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14454.

The product of its digits is 5292, while the sum is 32.

The square root of 677129 is about 822.8784843463. The cubic root of 677129 is about 87.8126610391.

The spelling of 677129 in words is "six hundred seventy-seven thousand, one hundred twenty-nine".