779321201 has 2 divisors, whose sum is σ = 779321202. Its totient is φ = 779321200.

The previous prime is 779321173. The next prime is 779321203. The reversal of 779321201 is 102123977.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 424978225 + 354342976 = 20615^2 + 18824^2 .

It is an emirp because it is prime and its reverse (102123977) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 779321201 - 2¹⁰ = 779320177 is a prime.

Together with 779321203, 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 (779321203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389660600 + 389660601.

It is an arithmetic number, because the mean of its divisors is an integer number (389660601).

Almost surely, 2^779321201 is an apocalyptic number.

It is an amenable number.

779321201 is a deficient number, since it is larger than the sum of its proper divisors (1).

779321201 is an equidigital number, since it uses as much as digits as its factorization.

779321201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 779321201 is about 27916.3249909439. The cubic root of 779321201 is about 920.2493027116.

The spelling of 779321201 in words is "seven hundred seventy-nine million, three hundred twenty-one thousand, two hundred one".