802191 has 16 divisors (see below), whose sum is σ = 1172864. Its totient is φ = 484704.

The previous prime is 802189. The next prime is 802231. The reversal of 802191 is 191208.

It is not a de Polignac number, because 802191 - 2¹ = 802189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2460 + ... + 2766.

It is an arithmetic number, because the mean of its divisors is an integer number (73304).

2⁸⁰²¹⁹¹ is an apocalyptic number.

802191 is a deficient number, since it is larger than the sum of its proper divisors (370673).

802191 is a wasteful number, since it uses less digits than its factorization.

802191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 802191 is about 895.6511597715. The cubic root of 802191 is about 92.9164470983.

Adding to 802191 its reverse (191208), we get a palindrome (993399).

The spelling of 802191 in words is "eight hundred two thousand, one hundred ninety-one".