869056772 has 6 divisors (see below), whose sum is σ = 1520849358. Its totient is φ = 434528384.

The previous prime is 869056757. The next prime is 869056781. The reversal of 869056772 is 277650968.

It can be written as a sum of positive squares in only one way, i.e., 787588096 + 81468676 = 28064^2 + 9026^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 869056772.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108632093 + ... + 108632100.

It is an arithmetic number, because the mean of its divisors is an integer number (253474893).

Almost surely, 2^869056772 is an apocalyptic number.

It is an amenable number.

869056772 is a deficient number, since it is larger than the sum of its proper divisors (651792586).

869056772 is a wasteful number, since it uses less digits than its factorization.

869056772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217264197 (or 217264195 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 869056772 is about 29479.7688593381. The cubic root of 869056772 is about 954.2951486981.

The spelling of 869056772 in words is "eight hundred sixty-nine million, fifty-six thousand, seven hundred seventy-two".