869532989 has 8 divisors (see below), whose sum is σ = 936852000. Its totient is φ = 802275696.

The previous prime is 869532977. The next prime is 869532997. The reversal of 869532989 is 989235968.

869532989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 869532989 - 2¹² = 869528893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (869532889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16262 + ... + 44760.

It is an arithmetic number, because the mean of its divisors is an integer number (117106500).

Almost surely, 2^869532989 is an apocalyptic number.

It is an amenable number.

869532989 is a deficient number, since it is larger than the sum of its proper divisors (67319011).

869532989 is a wasteful number, since it uses less digits than its factorization.

869532989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30859.

The product of its digits is 8398080, while the sum is 59.

The square root of 869532989 is about 29487.8447669544. The cubic root of 869532989 is about 954.4694252257.

The spelling of 869532989 in words is "eight hundred sixty-nine million, five hundred thirty-two thousand, nine hundred eighty-nine".