676445 has 24 divisors (see below), whose sum is σ = 1034208. Its totient is φ = 420000.

The previous prime is 676427. The next prime is 676463. The reversal of 676445 is 544676.

676445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (676427) and next prime (676463).

It is not a de Polignac number, because 676445 - 2¹² = 672349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2570 + ... + 2820.

It is an arithmetic number, because the mean of its divisors is an integer number (43092).

2⁶⁷⁶⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

676445 is a deficient number, since it is larger than the sum of its proper divisors (357763).

676445 is a wasteful number, since it uses less digits than its factorization.

676445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 274 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 676445 is about 822.4627651146. The cubic root of 676445 is about 87.7830831714.

Subtracting from 676445 its reverse (544676), we obtain a square (131769 = 363²).

The spelling of 676445 in words is "six hundred seventy-six thousand, four hundred forty-five".