802791 has 40 divisors (see below), whose sum is σ = 1411344. Its totient is φ = 449280.

The previous prime is 802787. The next prime is 802793. The reversal of 802791 is 197208.

It is not a de Polignac number, because 802791 - 2² = 802787 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

802791 is a lucky number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802793) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15121 + ... + 15173.

2⁸⁰²⁷⁹¹ is an apocalyptic number.

802791 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

802791 is a deficient number, since it is larger than the sum of its proper divisors (608553).

802791 is a wasteful number, since it uses less digits than its factorization.

802791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 802791 is about 895.9860489985. The cubic root of 802791 is about 92.9396069919.

Adding to 802791 its reverse (197208), we get a palindrome (999999).

It can be divided in two parts, 8027 and 91, that added together give a palindrome (8118).

The spelling of 802791 in words is "eight hundred two thousand, seven hundred ninety-one".