239656801 has 2 divisors, whose sum is σ = 239656802. Its totient is φ = 239656800.

The previous prime is 239656763. The next prime is 239656811. The reversal of 239656801 is 108656932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145178401 + 94478400 = 12049^2 + 9720^2 .

It is a cyclic number.

It is not a de Polignac number, because 239656801 - 2¹⁹ = 239132513 is a prime.

It is not a weakly prime, because it can be changed into another prime (239656811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119828400 + 119828401.

It is an arithmetic number, because the mean of its divisors is an integer number (119828401).

Almost surely, 2^239656801 is an apocalyptic number.

It is an amenable number.

239656801 is a deficient number, since it is larger than the sum of its proper divisors (1).

239656801 is an equidigital number, since it uses as much as digits as its factorization.

239656801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 239656801 is about 15480.8527219918. The cubic root of 239656801 is about 621.1501379106.

The spelling of 239656801 in words is "two hundred thirty-nine million, six hundred fifty-six thousand, eight hundred one".