768421089 has 12 divisors (see below), whose sum is σ = 1114588800. Its totient is φ = 510135864.

The previous prime is 768421061. The next prime is 768421117. The reversal of 768421089 is 980124867.

It is an interprime number because it is at equal distance from previous prime (768421061) and next prime (768421117).

It is not a de Polignac number, because 768421089 - 2⁸ = 768420833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (768421289) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 176469 + ... + 180770.

It is an arithmetic number, because the mean of its divisors is an integer number (92882400).

Almost surely, 2^768421089 is an apocalyptic number.

It is an amenable number.

768421089 is a deficient number, since it is larger than the sum of its proper divisors (346167711).

768421089 is a wasteful number, since it uses less digits than its factorization.

768421089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357484 (or 357481 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 768421089 is about 27720.4092502257. The cubic root of 768421089 is about 915.9387338014.

The spelling of 768421089 in words is "seven hundred sixty-eight million, four hundred twenty-one thousand, eighty-nine".