869023642 has 8 divisors (see below), whose sum is σ = 1310360832. Its totient is φ = 432236700.

The previous prime is 869023633. The next prime is 869023667. The reversal of 869023642 is 246320968.

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

It is a junction number, because it is equal to n+sod(n) for n = 869023595 and 869023604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137084 + ... + 1137847.

It is an arithmetic number, because the mean of its divisors is an integer number (163795104).

Almost surely, 2^869023642 is an apocalyptic number.

869023642 is a deficient number, since it is larger than the sum of its proper divisors (441337190).

869023642 is a wasteful number, since it uses less digits than its factorization.

869023642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275124.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 869023642 is about 29479.2069431998. The cubic root of 869023642 is about 954.2830220642.

The spelling of 869023642 in words is "eight hundred sixty-nine million, twenty-three thousand, six hundred forty-two".