802471489 has 2 divisors, whose sum is σ = 802471490. Its totient is φ = 802471488.

The previous prime is 802471469. The next prime is 802471507. The reversal of 802471489 is 984174208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 767567025 + 34904464 = 27705^2 + 5908^2 .

It is a cyclic number.

It is not a de Polignac number, because 802471489 - 2⁵ = 802471457 is a prime.

It is not a weakly prime, because it can be changed into another prime (802471469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401235744 + 401235745.

It is an arithmetic number, because the mean of its divisors is an integer number (401235745).

Almost surely, 2^802471489 is an apocalyptic number.

It is an amenable number.

802471489 is a deficient number, since it is larger than the sum of its proper divisors (1).

802471489 is an equidigital number, since it uses as much as digits as its factorization.

802471489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 802471489 is about 28327.9277215966. The cubic root of 802471489 is about 929.2727536089.

The spelling of 802471489 in words is "eight hundred two million, four hundred seventy-one thousand, four hundred eighty-nine".