887669 has 2 divisors, whose sum is σ = 887670. Its totient is φ = 887668.

The previous prime is 887659. The next prime is 887671. The reversal of 887669 is 966788.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 819025 + 68644 = 905^2 + 262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-887669 is a prime.

It is a super-3 number, since 3×887669³ = 2098333018926717927, which contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 887671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (887629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 443834 + 443835.

It is an arithmetic number, because the mean of its divisors is an integer number (443835).

2⁸⁸⁷⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

887669 is a deficient number, since it is larger than the sum of its proper divisors (1).

887669 is an equidigital number, since it uses as much as digits as its factorization.

887669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The square root of 887669 is about 942.1618756880. The cubic root of 887669 is about 96.1059666117.

The spelling of 887669 in words is "eight hundred eighty-seven thousand, six hundred sixty-nine".