801802823 has 4 divisors (see below), whose sum is σ = 807184200. Its totient is φ = 796421448.

The previous prime is 801802819. The next prime is 801802843. The reversal of 801802823 is 328208108.

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

It is a cyclic number.

It is not a de Polignac number, because 801802823 - 2² = 801802819 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 801802823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801802843) 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, 2690465 + ... + 2690762.

It is an arithmetic number, because the mean of its divisors is an integer number (201796050).

Almost surely, 2^801802823 is an apocalyptic number.

801802823 is a deficient number, since it is larger than the sum of its proper divisors (5381377).

801802823 is a wasteful number, since it uses less digits than its factorization.

801802823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381376.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 801802823 is about 28316.1230220523. The cubic root of 801802823 is about 929.0145738183.

The spelling of 801802823 in words is "eight hundred one million, eight hundred two thousand, eight hundred twenty-three".