802628081 has 2 divisors, whose sum is σ = 802628082. Its totient is φ = 802628080.

The previous prime is 802628069. The next prime is 802628107. The reversal of 802628081 is 180826208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 718722481 + 83905600 = 26809^2 + 9160^2 .

It is a cyclic number.

It is not a de Polignac number, because 802628081 - 2¹⁴ = 802611697 is a prime.

It is a super-2 number, since 2×802628081² = 1288423672819485122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (802628051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401314040 + 401314041.

It is an arithmetic number, because the mean of its divisors is an integer number (401314041).

Almost surely, 2^802628081 is an apocalyptic number.

It is an amenable number.

802628081 is a deficient number, since it is larger than the sum of its proper divisors (1).

802628081 is an equidigital number, since it uses as much as digits as its factorization.

802628081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 802628081 is about 28330.6915023266. The cubic root of 802628081 is about 929.3331948901. Note that the first 3 decimals are identical.

The spelling of 802628081 in words is "eight hundred two million, six hundred twenty-eight thousand, eighty-one".