766343441 has 2 divisors, whose sum is σ = 766343442. Its totient is φ = 766343440.

The previous prime is 766343329. The next prime is 766343453. The reversal of 766343441 is 144343667.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547747216 + 218596225 = 23404^2 + 14785^2 .

It is a cyclic number.

It is not a de Polignac number, because 766343441 - 2¹⁸ = 766081297 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 766343395 and 766343404.

It is not a weakly prime, because it can be changed into another prime (766343041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383171720 + 383171721.

It is an arithmetic number, because the mean of its divisors is an integer number (383171721).

Almost surely, 2^766343441 is an apocalyptic number.

It is an amenable number.

766343441 is a deficient number, since it is larger than the sum of its proper divisors (1).

766343441 is an equidigital number, since it uses as much as digits as its factorization.

766343441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 38.

The square root of 766343441 is about 27682.9088247605. The cubic root of 766343441 is about 915.1124871909.

The spelling of 766343441 in words is "seven hundred sixty-six million, three hundred forty-three thousand, four hundred forty-one".