677079 has 20 divisors (see below), whose sum is σ = 1090936. Its totient is φ = 416016.

The previous prime is 677077. The next prime is 677081. The reversal of 677079 is 970776.

It is an interprime number because it is at equal distance from previous prime (677077) and next prime (677081).

It is not a de Polignac number, because 677079 - 2¹ = 677077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 732 + ... + 1374.

2⁶⁷⁷⁰⁷⁹ is an apocalyptic number.

677079 is a deficient number, since it is larger than the sum of its proper divisors (413857).

677079 is a wasteful number, since it uses less digits than its factorization.

677079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668 (or 659 counting only the distinct ones).

The product of its (nonzero) digits is 18522, while the sum is 36.

The square root of 677079 is about 822.8481026289. The cubic root of 677079 is about 87.8104995893.

The spelling of 677079 in words is "six hundred seventy-seven thousand, seventy-nine".