869801 has 4 divisors (see below), whose sum is σ = 915600. Its totient is φ = 824004.

The previous prime is 869779. The next prime is 869807. The reversal of 869801 is 108968.

869801 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-869801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869801.

It is not an unprimeable number, because it can be changed into a prime (869807) 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, 22871 + ... + 22908.

It is an arithmetic number, because the mean of its divisors is an integer number (228900).

2⁸⁶⁹⁸⁰¹ is an apocalyptic number.

It is an amenable number.

869801 is a deficient number, since it is larger than the sum of its proper divisors (45799).

869801 is a wasteful number, since it uses less digits than its factorization.

869801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45798.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 869801 is about 932.6312240109. The cubic root of 869801 is about 95.4567478637.

The spelling of 869801 in words is "eight hundred sixty-nine thousand, eight hundred one".