802039841 has 4 divisors (see below), whose sum is σ = 802348932. Its totient is φ = 801730752.

The previous prime is 802039807. The next prime is 802039879. The reversal of 802039841 is 148930208.

It is a happy number.

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 452200225 + 349839616 = 21265^2 + 18704^2 .

It is a cyclic number.

It is not a de Polignac number, because 802039841 - 2¹⁰ = 802038817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (802039891) 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, 150620 + ... + 155853.

It is an arithmetic number, because the mean of its divisors is an integer number (200587233).

Almost surely, 2^802039841 is an apocalyptic number.

It is an amenable number.

802039841 is a deficient number, since it is larger than the sum of its proper divisors (309091).

802039841 is a wasteful number, since it uses less digits than its factorization.

802039841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309090.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 802039841 is about 28320.3079255858. The cubic root of 802039841 is about 929.1061056665.

The spelling of 802039841 in words is "eight hundred two million, thirty-nine thousand, eight hundred forty-one".