671010887 has 2 divisors, whose sum is σ = 671010888. Its totient is φ = 671010886.

The previous prime is 671010883. The next prime is 671010941. The reversal of 671010887 is 788010176.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 671010887 - 2² = 671010883 is a prime.

It is a super-2 number, since 2×671010887² = 900511220945053538, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 671010887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671010883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335505443 + 335505444.

It is an arithmetic number, because the mean of its divisors is an integer number (335505444).

Almost surely, 2^671010887 is an apocalyptic number.

671010887 is a deficient number, since it is larger than the sum of its proper divisors (1).

671010887 is an equidigital number, since it uses as much as digits as its factorization.

671010887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 38.

The square root of 671010887 is about 25903.8778371116. The cubic root of 671010887 is about 875.4738709943.

The spelling of 671010887 in words is "six hundred seventy-one million, ten thousand, eight hundred eighty-seven".