863894242 has 16 divisors (see below), whose sum is σ = 1364875200. Its totient is φ = 408963600.

The previous prime is 863894233. The next prime is 863894243. The reversal of 863894242 is 242498368.

It is a super-2 number, since 2×863894242² = 1492626522721509128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 863894192 and 863894201.

It is not an unprimeable number, because it can be changed into a prime (863894243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66259 + ... + 78217.

It is an arithmetic number, because the mean of its divisors is an integer number (85304700).

Almost surely, 2^863894242 is an apocalyptic number.

863894242 is a deficient number, since it is larger than the sum of its proper divisors (500980958).

863894242 is a wasteful number, since it uses less digits than its factorization.

863894242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13881.

The product of its digits is 663552, while the sum is 46.

The square root of 863894242 is about 29392.0778782311. The cubic root of 863894242 is about 952.4017684007.

The spelling of 863894242 in words is "eight hundred sixty-three million, eight hundred ninety-four thousand, two hundred forty-two".