768147 has 4 divisors (see below), whose sum is σ = 1024200. Its totient is φ = 512096.

The previous prime is 768139. The next prime is 768161. The reversal of 768147 is 741867.

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 768147 - 2³ = 768139 is a prime.

It is a D-number.

768147 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (768107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128022 + ... + 128027.

It is an arithmetic number, because the mean of its divisors is an integer number (256050).

2⁷⁶⁸¹⁴⁷ is an apocalyptic number.

768147 is a deficient number, since it is larger than the sum of its proper divisors (256053).

768147 is a wasteful number, since it uses less digits than its factorization.

768147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256052.

The product of its digits is 9408, while the sum is 33.

The square root of 768147 is about 876.4399580120. The cubic root of 768147 is about 91.5829818438.

Adding to 768147 its sum of digits (33), we get a triangular number (768180 = T₁₂₃₉).

It can be divided in two parts, 768 and 147, that multiplied together give a square (112896 = 336²).

The spelling of 768147 in words is "seven hundred sixty-eight thousand, one hundred forty-seven".