768861243 has 6 divisors (see below), whose sum is σ = 1110577364. Its totient is φ = 512574156.

The previous prime is 768861217. The next prime is 768861271. The reversal of 768861243 is 342168867.

It is not a de Polignac number, because 768861243 - 2⁵ = 768861211 is a prime.

It is a super-2 number, since 2×768861243² = 1182295221975010098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768861283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42714505 + ... + 42714522.

Almost surely, 2^768861243 is an apocalyptic number.

768861243 is a deficient number, since it is larger than the sum of its proper divisors (341716121).

768861243 is a wasteful number, since it uses less digits than its factorization.

768861243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85429033 (or 85429030 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 768861243 is about 27728.3472821587. The cubic root of 768861243 is about 916.1135846099.

The spelling of 768861243 in words is "seven hundred sixty-eight million, eight hundred sixty-one thousand, two hundred forty-three".