677449 has 4 divisors (see below), whose sum is σ = 680400. Its totient is φ = 674500.

The previous prime is 677447. The next prime is 677459. The reversal of 677449 is 944776.

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 677449 - 2¹ = 677447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677441) 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, 1099 + ... + 1600.

It is an arithmetic number, because the mean of its divisors is an integer number (170100).

2⁶⁷⁷⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

677449 is a deficient number, since it is larger than the sum of its proper divisors (2951).

677449 is a wasteful number, since it uses less digits than its factorization.

677449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2950.

The product of its digits is 42336, while the sum is 37.

The square root of 677449 is about 823.0729007810. The cubic root of 677449 is about 87.8264917992.

The spelling of 677449 in words is "six hundred seventy-seven thousand, four hundred forty-nine".