776106601 has 2 divisors, whose sum is σ = 776106602. Its totient is φ = 776106600.

The previous prime is 776106587. The next prime is 776106647. The reversal of 776106601 is 106601677.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 638067600 + 138039001 = 25260^2 + 11749^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-776106601 is a prime.

It is a super-2 number, since 2×776106601² = 1204682912231546402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (776106691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388053300 + 388053301.

It is an arithmetic number, because the mean of its divisors is an integer number (388053301).

Almost surely, 2^776106601 is an apocalyptic number.

It is an amenable number.

776106601 is a deficient number, since it is larger than the sum of its proper divisors (1).

776106601 is an equidigital number, since it uses as much as digits as its factorization.

776106601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 776106601 is about 27858.6898651031. The cubic root of 776106601 is about 918.9822555276.

The spelling of 776106601 in words is "seven hundred seventy-six million, one hundred six thousand, six hundred one".