869065945 has 8 divisors (see below), whose sum is σ = 1137686400. Its totient is φ = 632047920.

The previous prime is 869065931. The next prime is 869066021. The reversal of 869065945 is 549560968.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-869065945 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 869065892 and 869065901.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7900545 + ... + 7900654.

It is an arithmetic number, because the mean of its divisors is an integer number (142210800).

Almost surely, 2^869065945 is an apocalyptic number.

It is an amenable number.

869065945 is a deficient number, since it is larger than the sum of its proper divisors (268620455).

869065945 is a wasteful number, since it uses less digits than its factorization.

869065945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15801215.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The square root of 869065945 is about 29479.9244402017. The cubic root of 869065945 is about 954.2985062534.

It can be divided in two parts, 8690659 and 45, that added together give a square (8690704 = 2948²).

The spelling of 869065945 in words is "eight hundred sixty-nine million, sixty-five thousand, nine hundred forty-five".