768236407 has 2 divisors, whose sum is σ = 768236408. Its totient is φ = 768236406.

The previous prime is 768236387. The next prime is 768236449. The reversal of 768236407 is 704632867.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (704632867) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-768236407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768236107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384118203 + 384118204.

It is an arithmetic number, because the mean of its divisors is an integer number (384118204).

Almost surely, 2^768236407 is an apocalyptic number.

768236407 is a deficient number, since it is larger than the sum of its proper divisors (1).

768236407 is an equidigital number, since it uses as much as digits as its factorization.

768236407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 768236407 is about 27717.0778943236. The cubic root of 768236407 is about 915.8653491459.

The spelling of 768236407 in words is "seven hundred sixty-eight million, two hundred thirty-six thousand, four hundred seven".