802007989 has 2 divisors, whose sum is σ = 802007990. Its totient is φ = 802007988.

The previous prime is 802007959. The next prime is 802008013. The reversal of 802007989 is 989700208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 442260900 + 359747089 = 21030^2 + 18967^2 .

It is a cyclic number.

It is not a de Polignac number, because 802007989 - 2⁵ = 802007957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802007959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401003994 + 401003995.

It is an arithmetic number, because the mean of its divisors is an integer number (401003995).

Almost surely, 2^802007989 is an apocalyptic number.

It is an amenable number.

802007989 is a deficient number, since it is larger than the sum of its proper divisors (1).

802007989 is an equidigital number, since it uses as much as digits as its factorization.

802007989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 802007989 is about 28319.7455673599. The cubic root of 802007989 is about 929.0938060783.

The spelling of 802007989 in words is "eight hundred two million, seven thousand, nine hundred eighty-nine".