761772773 has 2 divisors, whose sum is σ = 761772774. Its totient is φ = 761772772.

The previous prime is 761772691. The next prime is 761772853. The reversal of 761772773 is 377277167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643028164 + 118744609 = 25358^2 + 10897^2 .

It is a cyclic number.

It is not a de Polignac number, because 761772773 - 2¹² = 761768677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (761772373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380886386 + 380886387.

It is an arithmetic number, because the mean of its divisors is an integer number (380886387).

Almost surely, 2^761772773 is an apocalyptic number.

It is an amenable number.

761772773 is a deficient number, since it is larger than the sum of its proper divisors (1).

761772773 is an equidigital number, since it uses as much as digits as its factorization.

761772773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 605052, while the sum is 47.

The square root of 761772773 is about 27600.2313939576. The cubic root of 761772773 is about 913.2895366636.

The spelling of 761772773 in words is "seven hundred sixty-one million, seven hundred seventy-two thousand, seven hundred seventy-three".