1676840491 has 8 divisors (see below), whose sum is σ = 1705190400. Its totient is φ = 1648668840.

The previous prime is 1676840489. The next prime is 1676840521. The reversal of 1676840491 is 1940486761.

1676840491 is nontrivially palindromic in base 11.

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

It is a cyclic number.

It is not a de Polignac number, because 1676840491 - 2¹ = 1676840489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1676840471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25525 + ... + 63286.

It is an arithmetic number, because the mean of its divisors is an integer number (213148800).

Almost surely, 2^1676840491 is an apocalyptic number.

1676840491 is a deficient number, since it is larger than the sum of its proper divisors (28349909).

1676840491 is an equidigital number, since it uses as much as digits as its factorization.

1676840491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89129.

The product of its (nonzero) digits is 290304, while the sum is 46.

The square root of 1676840491 is about 40949.2428623534. The cubic root of 1676840491 is about 1188.0386897560.

The spelling of 1676840491 in words is "one billion, six hundred seventy-six million, eight hundred forty thousand, four hundred ninety-one".