775563097 has 2 divisors, whose sum is σ = 775563098. Its totient is φ = 775563096.

The previous prime is 775563079. The next prime is 775563119. The reversal of 775563097 is 790365577.

Together with previous prime (775563079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 771783961 + 3779136 = 27781^2 + 1944^2 .

It is a cyclic number.

It is not a de Polignac number, because 775563097 - 2⁷ = 775562969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 775563097.

It is not a weakly prime, because it can be changed into another prime (775563017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387781548 + 387781549.

It is an arithmetic number, because the mean of its divisors is an integer number (387781549).

Almost surely, 2^775563097 is an apocalyptic number.

It is an amenable number.

775563097 is a deficient number, since it is larger than the sum of its proper divisors (1).

775563097 is an equidigital number, since it uses as much as digits as its factorization.

775563097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1389150, while the sum is 49.

The square root of 775563097 is about 27848.9334984304. The cubic root of 775563097 is about 918.7676857039.

The spelling of 775563097 in words is "seven hundred seventy-five million, five hundred sixty-three thousand, ninety-seven".