969340861 has 4 divisors (see below), whose sum is σ = 969417724. Its totient is φ = 969264000.

The previous prime is 969340859. The next prime is 969340877. The reversal of 969340861 is 168043969.

It is the 12711-st star number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 168043969 = 6833 ⋅24593.

It can be written as a sum of positive squares in 2 ways, for example, as 476767225 + 492573636 = 21835^2 + 22194^2 .

It is a cyclic number.

It is not a de Polignac number, because 969340861 - 2¹ = 969340859 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 (969340961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14580 + ... + 46381.

It is an arithmetic number, because the mean of its divisors is an integer number (242354431).

Almost surely, 2^969340861 is an apocalyptic number.

It is an amenable number.

969340861 is a deficient number, since it is larger than the sum of its proper divisors (76863).

969340861 is a wasteful number, since it uses less digits than its factorization.

969340861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76862.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 969340861 is about 31134.2393676158. The cubic root of 969340861 is about 989.6740283133.

The spelling of 969340861 in words is "nine hundred sixty-nine million, three hundred forty thousand, eight hundred sixty-one".