869263947 has 8 divisors (see below), whose sum is σ = 1287798480. Its totient is φ = 579509280.

The previous prime is 869263867. The next prime is 869263973. The reversal of 869263947 is 749362968.

It is a happy number.

It is not a de Polignac number, because 869263947 - 2⁸ = 869263691 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 869263893 and 869263902.

It is not an unprimeable number, because it can be changed into a prime (869263147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16097454 + ... + 16097507.

It is an arithmetic number, because the mean of its divisors is an integer number (160974810).

Almost surely, 2^869263947 is an apocalyptic number.

869263947 is a deficient number, since it is larger than the sum of its proper divisors (418534533).

869263947 is a wasteful number, since it uses less digits than its factorization.

869263947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32194970 (or 32194964 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 869263947 is about 29483.2825004273. The cubic root of 869263947 is about 954.3709743501.

The spelling of 869263947 in words is "eight hundred sixty-nine million, two hundred sixty-three thousand, nine hundred forty-seven".