770761 has 2 divisors, whose sum is σ = 770762. Its totient is φ = 770760.

The previous prime is 770741. The next prime is 770767. The reversal of 770761 is 167077.

770761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 732736 + 38025 = 856^2 + 195^2 .

It is an emirp because it is prime and its reverse (167077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 770761 - 2¹⁷ = 639689 is a prime.

It is not a weakly prime, because it can be changed into another prime (770767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385380 + 385381.

It is an arithmetic number, because the mean of its divisors is an integer number (385381).

2⁷⁷⁰⁷⁶¹ is an apocalyptic number.

It is an amenable number.

770761 is a deficient number, since it is larger than the sum of its proper divisors (1).

770761 is an equidigital number, since it uses as much as digits as its factorization.

770761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2058, while the sum is 28.

The square root of 770761 is about 877.9299516476. The cubic root of 770761 is about 91.6867496861.

It can be divided in two parts, 77076 and 1, that added together give a palindrome (77077).

The spelling of 770761 in words is "seven hundred seventy thousand, seven hundred sixty-one".