766450441 has 2 divisors, whose sum is σ = 766450442. Its totient is φ = 766450440.

The previous prime is 766450439. The next prime is 766450463. The reversal of 766450441 is 144054667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 435974400 + 330476041 = 20880^2 + 18179^2 .

It is a cyclic number.

It is not a de Polignac number, because 766450441 - 2¹ = 766450439 is a prime.

Together with 766450439, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 766450441.

It is not a weakly prime, because it can be changed into another prime (766450241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383225220 + 383225221.

It is an arithmetic number, because the mean of its divisors is an integer number (383225221).

Almost surely, 2^766450441 is an apocalyptic number.

It is an amenable number.

766450441 is a deficient number, since it is larger than the sum of its proper divisors (1).

766450441 is an equidigital number, since it uses as much as digits as its factorization.

766450441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 766450441 is about 27684.8413576816. The cubic root of 766450441 is about 915.1550757893.

The spelling of 766450441 in words is "seven hundred sixty-six million, four hundred fifty thousand, four hundred forty-one".