675856491 has 8 divisors (see below), whose sum is σ = 901291584. Its totient is φ = 450496200.

The previous prime is 675856481. The next prime is 675856501. The reversal of 675856491 is 194658576.

It is an interprime number because it is at equal distance from previous prime (675856481) and next prime (675856501).

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

It is not a de Polignac number, because 675856491 - 2⁵ = 675856459 is a prime.

It is a Smith number, since the sum of its digits (51) 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 (675856481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7716 + ... + 37566.

It is an arithmetic number, because the mean of its divisors is an integer number (112661448).

Almost surely, 2^675856491 is an apocalyptic number.

675856491 is a deficient number, since it is larger than the sum of its proper divisors (225435093).

675856491 is a wasteful number, since it uses less digits than its factorization.

675856491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37401.

The product of its digits is 1814400, while the sum is 51.

The square root of 675856491 is about 25997.2400650531. The cubic root of 675856491 is about 877.5761861109.

The spelling of 675856491 in words is "six hundred seventy-five million, eight hundred fifty-six thousand, four hundred ninety-one".