969539861 has 32 divisors (see below), whose sum is σ = 1082419200. Its totient is φ = 865332160.

The previous prime is 969539843. The next prime is 969539863. The reversal of 969539861 is 168935969.

It is not a de Polignac number, because 969539861 - 2⁶ = 969539797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 969539797 and 969539806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (969539863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2793890 + ... + 2794236.

It is an arithmetic number, because the mean of its divisors is an integer number (33825600).

Almost surely, 2^969539861 is an apocalyptic number.

It is an amenable number.

969539861 is a deficient number, since it is larger than the sum of its proper divisors (112879339).

969539861 is a wasteful number, since it uses less digits than its factorization.

969539861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529.

The product of its digits is 3149280, while the sum is 56.

The square root of 969539861 is about 31137.4350420840. The cubic root of 969539861 is about 989.7417484394.

The spelling of 969539861 in words is "nine hundred sixty-nine million, five hundred thirty-nine thousand, eight hundred sixty-one".