677765 has 8 divisors (see below), whose sum is σ = 887328. Its totient is φ = 492880.

The previous prime is 677737. The next prime is 677767. The reversal of 677765 is 567776.

677765 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 677765 - 2¹² = 673669 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 (677767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6107 + ... + 6216.

It is an arithmetic number, because the mean of its divisors is an integer number (110916).

2⁶⁷⁷⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

677765 is a deficient number, since it is larger than the sum of its proper divisors (209563).

677765 is a wasteful number, since it uses less digits than its factorization.

677765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12339.

The product of its digits is 61740, while the sum is 38.

The square root of 677765 is about 823.2648419555. The cubic root of 677765 is about 87.8401454013.

The spelling of 677765 in words is "six hundred seventy-seven thousand, seven hundred sixty-five".