770693489 has 2 divisors, whose sum is σ = 770693490. Its totient is φ = 770693488.

The previous prime is 770693467. The next prime is 770693513. The reversal of 770693489 is 984396077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 565631089 + 205062400 = 23783^2 + 14320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-770693489 is a prime.

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 770693489.

It is not a weakly prime, because it can be changed into another prime (770693389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385346744 + 385346745.

It is an arithmetic number, because the mean of its divisors is an integer number (385346745).

Almost surely, 2^770693489 is an apocalyptic number.

It is an amenable number.

770693489 is a deficient number, since it is larger than the sum of its proper divisors (1).

770693489 is an equidigital number, since it uses as much as digits as its factorization.

770693489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 770693489 is about 27761.3668431509. The cubic root of 770693489 is about 916.8407265868.

The spelling of 770693489 in words is "seven hundred seventy million, six hundred ninety-three thousand, four hundred eighty-nine".