675881987 has 8 divisors (see below), whose sum is σ = 740197872. Its totient is φ = 612044800.

The previous prime is 675881977. The next prime is 675881989. The reversal of 675881987 is 789188576.

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 675881987 - 2¹⁸ = 675619843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (675881989) 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, 116714 + ... + 122367.

It is an arithmetic number, because the mean of its divisors is an integer number (92524734).

Almost surely, 2^675881987 is an apocalyptic number.

675881987 is a deficient number, since it is larger than the sum of its proper divisors (64315885).

675881987 is a wasteful number, since it uses less digits than its factorization.

675881987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239349.

The product of its digits is 6773760, while the sum is 59.

The square root of 675881987 is about 25997.7304201732. The cubic root of 675881987 is about 877.5872211957.

The spelling of 675881987 in words is "six hundred seventy-five million, eight hundred eighty-one thousand, nine hundred eighty-seven".