677485 has 4 divisors (see below), whose sum is σ = 812988. Its totient is φ = 541984.

The previous prime is 677473. The next prime is 677531. The reversal of 677485 is 584776.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 310249 + 367236 = 557^2 + 606^2 .

It is a cyclic number.

It is not a de Polignac number, because 677485 - 2⁷ = 677357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 67744 + ... + 67753.

It is an arithmetic number, because the mean of its divisors is an integer number (203247).

2⁶⁷⁷⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

677485 is a deficient number, since it is larger than the sum of its proper divisors (135503).

677485 is a wasteful number, since it uses less digits than its factorization.

677485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135502.

The product of its digits is 47040, while the sum is 37.

The square root of 677485 is about 823.0947697562. The cubic root of 677485 is about 87.8280474871.

It can be divided in two parts, 6774 and 85, that added together give a cube (6859 = 19³).

The spelling of 677485 in words is "six hundred seventy-seven thousand, four hundred eighty-five".