869963 has 4 divisors (see below), whose sum is σ = 882288. Its totient is φ = 857640.

The previous prime is 869959. The next prime is 869983. The reversal of 869963 is 369968.

869963 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.

It is a cyclic number.

It is not a de Polignac number, because 869963 - 2² = 869959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 869963.

It is not an unprimeable number, because it can be changed into a prime (869983) 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, 6056 + ... + 6197.

It is an arithmetic number, because the mean of its divisors is an integer number (220572).

2⁸⁶⁹⁹⁶³ is an apocalyptic number.

869963 is a deficient number, since it is larger than the sum of its proper divisors (12325).

869963 is a wasteful number, since it uses less digits than its factorization.

869963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12324.

The product of its digits is 69984, while the sum is 41.

The square root of 869963 is about 932.7180710161. The cubic root of 869963 is about 95.4626737530.

The spelling of 869963 in words is "eight hundred sixty-nine thousand, nine hundred sixty-three".