802781043 has 4 divisors (see below), whose sum is σ = 1070374728. Its totient is φ = 535187360.

The previous prime is 802781039. The next prime is 802781051. The reversal of 802781043 is 340187208.

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 802781043 - 2² = 802781039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 802780995 and 802781013.

It is not an unprimeable number, because it can be changed into a prime (802781003) 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, 133796838 + ... + 133796843.

It is an arithmetic number, because the mean of its divisors is an integer number (267593682).

Almost surely, 2^802781043 is an apocalyptic number.

802781043 is a deficient number, since it is larger than the sum of its proper divisors (267593685).

802781043 is a wasteful number, since it uses less digits than its factorization.

802781043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267593684.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 802781043 is about 28333.3909548434. The cubic root of 802781043 is about 929.3922274766.

The spelling of 802781043 in words is "eight hundred two million, seven hundred eighty-one thousand, forty-three".