775060381 has 2 divisors, whose sum is σ = 775060382. Its totient is φ = 775060380.

The previous prime is 775060367. The next prime is 775060387. The reversal of 775060381 is 183060577.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722265625 + 52794756 = 26875^2 + 7266^2 .

It is a cyclic number.

It is not a de Polignac number, because 775060381 - 2¹³ = 775052189 is a prime.

It is a super-2 number, since 2×775060381² = 1201437188391730322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 775060381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (775060387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 387530190 + 387530191.

It is an arithmetic number, because the mean of its divisors is an integer number (387530191).

Almost surely, 2^775060381 is an apocalyptic number.

It is an amenable number.

775060381 is a deficient number, since it is larger than the sum of its proper divisors (1).

775060381 is an equidigital number, since it uses as much as digits as its factorization.

775060381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 775060381 is about 27839.9062678020. The cubic root of 775060381 is about 918.5691293047.

The spelling of 775060381 in words is "seven hundred seventy-five million, sixty thousand, three hundred eighty-one".