802285809 has 8 divisors (see below), whose sum is σ = 1152000192. Its totient is φ = 493714320.

The previous prime is 802285741. The next prime is 802285831. The reversal of 802285809 is 908582208.

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

It is not a de Polignac number, because 802285809 - 2²⁰ = 801237233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (802285409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10285677 + ... + 10285754.

It is an arithmetic number, because the mean of its divisors is an integer number (144000024).

Almost surely, 2^802285809 is an apocalyptic number.

It is an amenable number.

802285809 is a deficient number, since it is larger than the sum of its proper divisors (349714383).

802285809 is a wasteful number, since it uses less digits than its factorization.

802285809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20571447.

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 802285809 is about 28324.6502008410. The cubic root of 802285809 is about 929.2010747695.

The spelling of 802285809 in words is "eight hundred two million, two hundred eighty-five thousand, eight hundred nine".