863038406 has 16 divisors (see below), whose sum is σ = 1373429760. Its totient is φ = 405586440.

The previous prime is 863038403. The next prime is 863038411. The reversal of 863038406 is 604830368.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 863038406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863038403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84590 + ... + 94241.

It is an arithmetic number, because the mean of its divisors is an integer number (85839360).

Almost surely, 2^863038406 is an apocalyptic number.

863038406 is a deficient number, since it is larger than the sum of its proper divisors (510391354).

863038406 is a wasteful number, since it uses less digits than its factorization.

863038406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178979.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 863038406 is about 29377.5153135863. The cubic root of 863038406 is about 952.0871585044.

The spelling of 863038406 in words is "eight hundred sixty-three million, thirty-eight thousand, four hundred six".