887641 has 2 divisors, whose sum is σ = 887642. Its totient is φ = 887640.

The previous prime is 887633. The next prime is 887651. The reversal of 887641 is 146788.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484416 + 403225 = 696^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 887641 - 2³ = 887633 is a prime.

887641 is a lucky number.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 887597 and 887606.

It is not a weakly prime, because it can be changed into another prime (887651) 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 as a sum of consecutive naturals, namely, 443820 + 443821.

It is an arithmetic number, because the mean of its divisors is an integer number (443821).

2⁸⁸⁷⁶⁴¹ is an apocalyptic number.

It is an amenable number.

887641 is a deficient number, since it is larger than the sum of its proper divisors (1).

887641 is an equidigital number, since it uses as much as digits as its factorization.

887641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 34.

The square root of 887641 is about 942.1470161286. The cubic root of 887641 is about 96.1049561016.

The spelling of 887641 in words is "eight hundred eighty-seven thousand, six hundred forty-one".