801968239 has 2 divisors, whose sum is σ = 801968240. Its totient is φ = 801968238.

The previous prime is 801968227. The next prime is 801968257. The reversal of 801968239 is 932869108.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 801968239 - 2¹⁷ = 801837167 is a prime.

It is a super-2 number, since 2×801968239² = 1286306112729522242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801968269) 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, 400984119 + 400984120.

It is an arithmetic number, because the mean of its divisors is an integer number (400984120).

Almost surely, 2^801968239 is an apocalyptic number.

801968239 is a deficient number, since it is larger than the sum of its proper divisors (1).

801968239 is an equidigital number, since it uses as much as digits as its factorization.

801968239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 801968239 is about 28319.0437515111. The cubic root of 801968239 is about 929.0784562357.

The spelling of 801968239 in words is "eight hundred one million, nine hundred sixty-eight thousand, two hundred thirty-nine".