775412873 has 2 divisors, whose sum is σ = 775412874. Its totient is φ = 775412872.

The previous prime is 775412849. The next prime is 775412881. The reversal of 775412873 is 378214577.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 545829769 + 229583104 = 23363^2 + 15152^2 .

It is a cyclic number.

It is not a de Polignac number, because 775412873 - 2¹⁶ = 775347337 is a prime.

It is a super-2 number, since 2×775412873² = 1202530247228228258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (775412273) 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, 387706436 + 387706437.

It is an arithmetic number, because the mean of its divisors is an integer number (387706437).

Almost surely, 2^775412873 is an apocalyptic number.

It is an amenable number.

775412873 is a deficient number, since it is larger than the sum of its proper divisors (1).

775412873 is an equidigital number, since it uses as much as digits as its factorization.

775412873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 329280, while the sum is 44.

The square root of 775412873 is about 27846.2362447782. The cubic root of 775412873 is about 918.7083611221.

The spelling of 775412873 in words is "seven hundred seventy-five million, four hundred twelve thousand, eight hundred seventy-three".