869898 has 8 divisors (see below), whose sum is σ = 1739808. Its totient is φ = 289964.

The previous prime is 869893. The next prime is 869899. The reversal of 869898 is 898968.

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

869898 is an admirable number.

It is a d-powerful number, because it can be written as 8² + 6⁷ + 8⁶ + 9⁴ + 9⁵ + 8⁶ .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869898.

It is not an unprimeable number, because it can be changed into a prime (869893) by changing a digit.

869898 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72486 + ... + 72497.

It is an arithmetic number, because the mean of its divisors is an integer number (217476).

2⁸⁶⁹⁸⁹⁸ is an apocalyptic number.

869898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

869898 is a wasteful number, since it uses less digits than its factorization.

869898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144988.

The product of its digits is 248832, while the sum is 48.

The square root of 869898 is about 932.6832259669. The cubic root of 869898 is about 95.4602961697.

The spelling of 869898 in words is "eight hundred sixty-nine thousand, eight hundred ninety-eight".