676449 has 6 divisors (see below), whose sum is σ = 977106. Its totient is φ = 450960.

The previous prime is 676427. The next prime is 676463. The reversal of 676449 is 944676.

676449 is a `hidden beast` number, since 6 + 7 + 644 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 535824 + 140625 = 732^2 + 375^2 .

It is not a de Polignac number, because 676449 - 2¹⁵ = 643681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (676409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37572 + ... + 37589.

It is an arithmetic number, because the mean of its divisors is an integer number (162851).

2⁶⁷⁶⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

676449 is a deficient number, since it is larger than the sum of its proper divisors (300657).

676449 is a wasteful number, since it uses less digits than its factorization.

676449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75167 (or 75164 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 676449 is about 822.4651968321. The cubic root of 676449 is about 87.7832561993.

The spelling of 676449 in words is "six hundred seventy-six thousand, four hundred forty-nine".