802489 has 4 divisors (see below), whose sum is σ = 813556. Its totient is φ = 791424.

The previous prime is 802471. The next prime is 802499. The reversal of 802489 is 984208.

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 284089 + 518400 = 533^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 802489 - 2¹¹ = 800441 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 802489.

It is not an unprimeable number, because it can be changed into a prime (802499) 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, 5424 + ... + 5569.

It is an arithmetic number, because the mean of its divisors is an integer number (203389).

2⁸⁰²⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

802489 is a deficient number, since it is larger than the sum of its proper divisors (11067).

802489 is a wasteful number, since it uses less digits than its factorization.

802489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11066.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 802489 is about 895.8175037361. The cubic root of 802489 is about 92.9279512884.

The spelling of 802489 in words is "eight hundred two thousand, four hundred eighty-nine".