863681234 has 32 divisors (see below), whose sum is σ = 1473462144. Its totient is φ = 376675200.

The previous prime is 863681227. The next prime is 863681237. The reversal of 863681234 is 432186368.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 863681191 and 863681200.

It is not an unprimeable number, because it can be changed into a prime (863681237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40934 + ... + 58334.

It is an arithmetic number, because the mean of its divisors is an integer number (46045692).

Almost surely, 2^863681234 is an apocalyptic number.

863681234 is a deficient number, since it is larger than the sum of its proper divisors (609780910).

863681234 is a wasteful number, since it uses less digits than its factorization.

863681234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17522.

The product of its digits is 165888, while the sum is 41.

The square root of 863681234 is about 29388.4540934021. The cubic root of 863681234 is about 952.3234849481.

The spelling of 863681234 in words is "eight hundred sixty-three million, six hundred eighty-one thousand, two hundred thirty-four".