677224 has 8 divisors (see below), whose sum is σ = 1269810. Its totient is φ = 338608.

The previous prime is 677213. The next prime is 677227. The reversal of 677224 is 422776.

It can be written as a sum of positive squares in only one way, i.e., 669124 + 8100 = 818^2 + 90^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 677192 and 677201.

It is not an unprimeable number, because it can be changed into a prime (677227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42319 + ... + 42334.

2⁶⁷⁷²²⁴ is an apocalyptic number.

It is an amenable number.

677224 is a deficient number, since it is larger than the sum of its proper divisors (592586).

677224 is a wasteful number, since it uses less digits than its factorization.

677224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84659 (or 84655 counting only the distinct ones).

The product of its digits is 4704, while the sum is 28.

The square root of 677224 is about 822.9362065191. The cubic root of 677224 is about 87.8167675007.

The spelling of 677224 in words is "six hundred seventy-seven thousand, two hundred twenty-four".