676271987 has 4 divisors (see below), whose sum is σ = 677213280. Its totient is φ = 675330696.

The previous prime is 676271971. The next prime is 676272007. The reversal of 676271987 is 789172676.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 676271987 - 2⁴ = 676271971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676271287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 469568 + ... + 471005.

It is an arithmetic number, because the mean of its divisors is an integer number (169303320).

Almost surely, 2^676271987 is an apocalyptic number.

676271987 is a deficient number, since it is larger than the sum of its proper divisors (941293).

676271987 is an equidigital number, since it uses as much as digits as its factorization.

676271987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941292.

The product of its digits is 1778112, while the sum is 53.

The square root of 676271987 is about 26005.2299932148. The cubic root of 676271987 is about 877.7559849806.

The spelling of 676271987 in words is "six hundred seventy-six million, two hundred seventy-one thousand, nine hundred eighty-seven".