770772397 has 2 divisors, whose sum is σ = 770772398. Its totient is φ = 770772396.

The previous prime is 770772383. The next prime is 770772439. The reversal of 770772397 is 793277077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517517001 + 253255396 = 22749^2 + 15914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-770772397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 770772397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (770772337) 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, 385386198 + 385386199.

It is an arithmetic number, because the mean of its divisors is an integer number (385386199).

Almost surely, 2^770772397 is an apocalyptic number.

It is an amenable number.

770772397 is a deficient number, since it is larger than the sum of its proper divisors (1).

770772397 is an equidigital number, since it uses as much as digits as its factorization.

770772397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907578, while the sum is 49.

The square root of 770772397 is about 27762.7879904018. The cubic root of 770772397 is about 916.8720159819.

The spelling of 770772397 in words is "seven hundred seventy million, seven hundred seventy-two thousand, three hundred ninety-seven".