768427 has 4 divisors (see below), whose sum is σ = 838296. Its totient is φ = 698560.

The previous prime is 768419. The next prime is 768431. The reversal of 768427 is 724867.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 768427 - 2³ = 768419 is a prime.

It is a Duffinian number.

768427 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 768392 and 768401.

It is not an unprimeable number, because it can be changed into a prime (768437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34918 + ... + 34939.

It is an arithmetic number, because the mean of its divisors is an integer number (209574).

2⁷⁶⁸⁴²⁷ is an apocalyptic number.

768427 is a deficient number, since it is larger than the sum of its proper divisors (69869).

768427 is a wasteful number, since it uses less digits than its factorization.

768427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69868.

The product of its digits is 18816, while the sum is 34.

The square root of 768427 is about 876.5996805840. The cubic root of 768427 is about 91.5941082384.

The spelling of 768427 in words is "seven hundred sixty-eight thousand, four hundred twenty-seven".