868914961 has 4 divisors (see below), whose sum is σ = 868979124. Its totient is φ = 868850800.

The previous prime is 868914941. The next prime is 868914971. The reversal of 868914961 is 169419868.

868914961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 398241936 + 470673025 = 19956^2 + 21695^2 .

It is a cyclic number.

It is not a de Polignac number, because 868914961 - 2¹³ = 868906769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 868914899 and 868914908.

It is not an unprimeable number, because it can be changed into a prime (868914941) 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, 2950 + ... + 41791.

It is an arithmetic number, because the mean of its divisors is an integer number (217244781).

Almost surely, 2^868914961 is an apocalyptic number.

It is an amenable number.

868914961 is a deficient number, since it is larger than the sum of its proper divisors (64163).

868914961 is a wasteful number, since it uses less digits than its factorization.

868914961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64162.

The product of its digits is 746496, while the sum is 52.

The square root of 868914961 is about 29477.3635354317. The cubic root of 868914961 is about 954.2432391968.

The spelling of 868914961 in words is "eight hundred sixty-eight million, nine hundred fourteen thousand, nine hundred sixty-one".