776904001 has 2 divisors, whose sum is σ = 776904002. Its totient is φ = 776904000.

The previous prime is 776903999. The next prime is 776904017. The reversal of 776904001 is 100409677.

776904001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 451137600 + 325766401 = 21240^2 + 18049^2 .

It is a cyclic number.

It is not a de Polignac number, because 776904001 - 2¹ = 776903999 is a prime.

Together with 776903999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (776904071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388452000 + 388452001.

It is an arithmetic number, because the mean of its divisors is an integer number (388452001).

Almost surely, 2^776904001 is an apocalyptic number.

It is an amenable number.

776904001 is a deficient number, since it is larger than the sum of its proper divisors (1).

776904001 is an equidigital number, since it uses as much as digits as its factorization.

776904001 is an odious number, because the sum of its binary digits is odd.

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

The square root of 776904001 is about 27872.9977038710. The cubic root of 776904001 is about 919.2968796723.

The spelling of 776904001 in words is "seven hundred seventy-six million, nine hundred four thousand, one".