676542985 has 8 divisors (see below), whose sum is σ = 814414536. Its totient is φ = 539525760.

The previous prime is 676542947. The next prime is 676542989. The reversal of 676542985 is 589245676.

It can be written as a sum of positive squares in 4 ways, for example, as 52142841 + 624400144 = 7221^2 + 24988^2 .

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

It is not a de Polignac number, because 676542985 - 2⁷ = 676542857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676542989) 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, 211836 + ... + 215005.

It is an arithmetic number, because the mean of its divisors is an integer number (101801817).

Almost surely, 2^676542985 is an apocalyptic number.

It is an amenable number.

676542985 is a deficient number, since it is larger than the sum of its proper divisors (137871551).

676542985 is a wasteful number, since it uses less digits than its factorization.

676542985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427163.

The product of its digits is 3628800, while the sum is 52.

The square root of 676542985 is about 26010.4399232308. The cubic root of 676542985 is about 877.8732151063.

The spelling of 676542985 in words is "six hundred seventy-six million, five hundred forty-two thousand, nine hundred eighty-five".