802591469 has 2 divisors, whose sum is σ = 802591470. Its totient is φ = 802591468.

The previous prime is 802591451. The next prime is 802591507. The reversal of 802591469 is 964195208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 576480100 + 226111369 = 24010^2 + 15037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-802591469 is a prime.

It is a super-2 number, since 2×802591469² = 1288306132223155922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802590469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401295734 + 401295735.

It is an arithmetic number, because the mean of its divisors is an integer number (401295735).

Almost surely, 2^802591469 is an apocalyptic number.

It is an amenable number.

802591469 is a deficient number, since it is larger than the sum of its proper divisors (1).

802591469 is an equidigital number, since it uses as much as digits as its factorization.

802591469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 802591469 is about 28330.0453405920. The cubic root of 802591469 is about 929.3190641177.

The spelling of 802591469 in words is "eight hundred two million, five hundred ninety-one thousand, four hundred sixty-nine".