869048985 has 32 divisors (see below), whose sum is σ = 1592128512. Its totient is φ = 396527040.

The previous prime is 869048969. The next prime is 869049011. The reversal of 869048985 is 589840968.

869048985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 869048985 - 2⁴ = 869048969 is a prime.

It is a super-2 number, since 2×869048985² = 1510492276659060450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49870 + ... + 65000.

It is an arithmetic number, because the mean of its divisors is an integer number (49754016).

Almost surely, 2^869048985 is an apocalyptic number.

It is an amenable number.

869048985 is a deficient number, since it is larger than the sum of its proper divisors (723079527).

869048985 is a wasteful number, since it uses less digits than its factorization.

869048985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15693.

The product of its (nonzero) digits is 4976640, while the sum is 57.

The square root of 869048985 is about 29479.6367854151. The cubic root of 869048985 is about 954.2922984361.

It can be divided in two parts, 8690 and 48985, that added together give a palindrome (57675).

The spelling of 869048985 in words is "eight hundred sixty-nine million, forty-eight thousand, nine hundred eighty-five".