768640333 has 2 divisors, whose sum is σ = 768640334. Its totient is φ = 768640332.

The previous prime is 768640309. The next prime is 768640337. The reversal of 768640333 is 333046867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 722373129 + 46267204 = 26877^2 + 6802^2 .

It is an emirp because it is prime and its reverse (333046867) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 768640333 - 2¹³ = 768632141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768640337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384320166 + 384320167.

It is an arithmetic number, because the mean of its divisors is an integer number (384320167).

Almost surely, 2^768640333 is an apocalyptic number.

It is an amenable number.

768640333 is a deficient number, since it is larger than the sum of its proper divisors (1).

768640333 is an equidigital number, since it uses as much as digits as its factorization.

768640333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 768640333 is about 27724.3635274103. The cubic root of 768640333 is about 916.0258366409.

The spelling of 768640333 in words is "seven hundred sixty-eight million, six hundred forty thousand, three hundred thirty-three".