676491 has 8 divisors (see below), whose sum is σ = 914640. Its totient is φ = 444672.

The previous prime is 676469. The next prime is 676493. The reversal of 676491 is 194676.

676491 = T₉₈ + T₉₉ + ... + T₁₇₀.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 676491 - 2⁶ = 676427 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (676493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326 + ... + 1763.

It is an arithmetic number, because the mean of its divisors is an integer number (114330).

2⁶⁷⁶⁴⁹¹ is an apocalyptic number.

676491 is a deficient number, since it is larger than the sum of its proper divisors (238149).

676491 is a wasteful number, since it uses less digits than its factorization.

676491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3165.

The product of its digits is 9072, while the sum is 33.

The square root of 676491 is about 822.4907294310. The cubic root of 676491 is about 87.7850729515.

The spelling of 676491 in words is "six hundred seventy-six thousand, four hundred ninety-one".