863444368 has 10 divisors (see below), whose sum is σ = 1672923494. Its totient is φ = 431722176.

The previous prime is 863444363. The next prime is 863444371.

863444368 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 785793024 + 77651344 = 28032^2 + 8812^2 .

It is not an unprimeable number, because it can be changed into a prime (863444363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26982621 + ... + 26982652.

Almost surely, 2^863444368 is an apocalyptic number.

It is an amenable number.

863444368 is a deficient number, since it is larger than the sum of its proper divisors (809479126).

863444368 is a wasteful number, since it uses less digits than its factorization.

863444368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53965281 (or 53965275 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 46.

The square root of 863444368 is about 29384.4239011079. The cubic root of 863444368 is about 952.2364182271.

The spelling of 863444368 in words is "eight hundred sixty-three million, four hundred forty-four thousand, three hundred sixty-eight".