869946 has 48 divisors (see below), whose sum is σ = 2216160. Its totient is φ = 225120.

The previous prime is 869927. The next prime is 869951. The reversal of 869946 is 649968.

869946 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 869898 and 869907.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869946.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3100 + ... + 3368.

It is an arithmetic number, because the mean of its divisors is an integer number (46170).

2⁸⁶⁹⁹⁴⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1108080).

869946 is an abundant number, since it is smaller than the sum of its proper divisors (1346214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869946 is a wasteful number, since it uses less digits than its factorization.

869946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299 (or 292 counting only the distinct ones).

The product of its digits is 93312, while the sum is 42.

The square root of 869946 is about 932.7089578212. The cubic root of 869946 is about 95.4620519349.

The spelling of 869946 in words is "eight hundred sixty-nine thousand, nine hundred forty-six".