887117869 has 8 divisors (see below), whose sum is σ = 986025312. Its totient is φ = 791253840.

The previous prime is 887117857. The next prime is 887117873. The reversal of 887117869 is 968711788.

It is a happy number.

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 887117869 - 2⁵ = 887117837 is a prime.

It is a super-2 number, since 2×887117869² = 1573956226998202322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (887117879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 760239 + ... + 761404.

It is an arithmetic number, because the mean of its divisors is an integer number (123253164).

Almost surely, 2^887117869 is an apocalyptic number.

It is an amenable number.

887117869 is a deficient number, since it is larger than the sum of its proper divisors (98907443).

887117869 is a wasteful number, since it uses less digits than its factorization.

887117869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1521707.

The product of its digits is 1354752, while the sum is 55.

The square root of 887117869 is about 29784.5239847811. The cubic root of 887117869 is about 960.8607258093.

It can be divided in two parts, 88711 and 7869, that added together give a triangular number (96580 = T₄₃₉).

The spelling of 887117869 in words is "eight hundred eighty-seven million, one hundred seventeen thousand, eight hundred sixty-nine".