768333021 has 8 divisors (see below), whose sum is σ = 1027941600. Its totient is φ = 510473232.

The previous prime is 768333011. The next prime is 768333061. The reversal of 768333021 is 120333867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 768333021 - 2⁷ = 768332893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768333011) 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 in 7 ways as a sum of consecutive naturals, for example, 436171 + ... + 437928.

It is an arithmetic number, because the mean of its divisors is an integer number (128492700).

Almost surely, 2^768333021 is an apocalyptic number.

It is an amenable number.

768333021 is a deficient number, since it is larger than the sum of its proper divisors (259608579).

768333021 is a wasteful number, since it uses less digits than its factorization.

768333021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874395.

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 768333021 is about 27718.8207000226. The cubic root of 768333021 is about 915.9037408462.

Adding to 768333021 its reverse (120333867), we get a palindrome (888666888).

It can be divided in two parts, 7683 and 33021, that added together give a palindrome (40704).

The spelling of 768333021 in words is "seven hundred sixty-eight million, three hundred thirty-three thousand, twenty-one".