775303049 has 2 divisors, whose sum is σ = 775303050. Its totient is φ = 775303048.

The previous prime is 775303043. The next prime is 775303091. The reversal of 775303049 is 940303577.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 542191225 + 233111824 = 23285^2 + 15268^2 .

It is an emirp because it is prime and its reverse (940303577) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 775303049 - 2²⁸ = 506867593 is a prime.

It is a Chen prime.

It is equal to p_39940328 and since 775303049 and 39940328 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (775303043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387651524 + 387651525.

It is an arithmetic number, because the mean of its divisors is an integer number (387651525).

Almost surely, 2^775303049 is an apocalyptic number.

It is an amenable number.

775303049 is a deficient number, since it is larger than the sum of its proper divisors (1).

775303049 is an equidigital number, since it uses as much as digits as its factorization.

775303049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 775303049 is about 27844.2642028839. The cubic root of 775303049 is about 918.6649859542.

The spelling of 775303049 in words is "seven hundred seventy-five million, three hundred three thousand, forty-nine".