768818 has 8 divisors (see below), whose sum is σ = 1175148. Its totient is φ = 377104.

The previous prime is 768811. The next prime is 768841. The reversal of 768818 is 818867.

It can be written as a sum of positive squares in 2 ways, for example, as 727609 + 41209 = 853^2 + 203^2 .

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

It is a super-2 number, since 2×768818² = 1182162234248, which contains 22 as substring.

It is an Ulam number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 768818.

It is not an unprimeable number, because it can be changed into a prime (768811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3521 + ... + 3732.

2⁷⁶⁸⁸¹⁸ is an apocalyptic number.

768818 is a deficient number, since it is larger than the sum of its proper divisors (406330).

768818 is a wasteful number, since it uses less digits than its factorization.

768818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7308.

The product of its digits is 21504, while the sum is 38.

The square root of 768818 is about 876.8226730645. The cubic root of 768818 is about 91.6096409321.

It can be divided in two parts, 7688 and 18, that multiplied together give a square (138384 = 372²).

The spelling of 768818 in words is "seven hundred sixty-eight thousand, eight hundred eighteen".