800047049 has 2 divisors, whose sum is σ = 800047050. Its totient is φ = 800047048.

The previous prime is 800047033. The next prime is 800047051. The reversal of 800047049 is 940740008.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 678342025 + 121705024 = 26045^2 + 11032^2 .

It is a cyclic number.

It is not a de Polignac number, because 800047049 - 2⁴ = 800047033 is a prime.

It is a super-2 number, since 2×800047049² = 1280150561227216802, which contains 22 as substring.

Together with 800047051, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (800047849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400023524 + 400023525.

It is an arithmetic number, because the mean of its divisors is an integer number (400023525).

Almost surely, 2^800047049 is an apocalyptic number.

It is an amenable number.

800047049 is a deficient number, since it is larger than the sum of its proper divisors (1).

800047049 is an equidigital number, since it uses as much as digits as its factorization.

800047049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 800047049 is about 28285.1029519074. The cubic root of 800047049 is about 928.3359648752.

The spelling of 800047049 in words is "eight hundred million, forty-seven thousand, forty-nine".