803969 has 4 divisors (see below), whose sum is σ = 823620. Its totient is φ = 784320.

The previous prime is 803963. The next prime is 803977. The reversal of 803969 is 969308.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 473344 + 330625 = 688^2 + 575^2 .

It is a cyclic number.

It is not a de Polignac number, because 803969 - 2¹² = 799873 is a prime.

It is a super-2 number, since 2×803969² = 1292732305922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (803963) 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, 9764 + ... + 9845.

It is an arithmetic number, because the mean of its divisors is an integer number (205905).

2⁸⁰³⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

803969 is a deficient number, since it is larger than the sum of its proper divisors (19651).

803969 is a wasteful number, since it uses less digits than its factorization.

803969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19650.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 803969 is about 896.6431843270. The cubic root of 803969 is about 92.9850440358.

The spelling of 803969 in words is "eight hundred three thousand, nine hundred sixty-nine".