803817866 has 16 divisors (see below), whose sum is σ = 1211482656. Its totient is φ = 399995376.

The previous prime is 803817841. The next prime is 803817887. The reversal of 803817866 is 668718308.

It is a super-2 number, since 2×803817866² = 1292246323401587912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 803817866.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628820 + ... + 630096.

It is an arithmetic number, because the mean of its divisors is an integer number (75717666).

Almost surely, 2^803817866 is an apocalyptic number.

803817866 is a deficient number, since it is larger than the sum of its proper divisors (407664790).

803817866 is a wasteful number, since it uses less digits than its factorization.

803817866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2533.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 803817866 is about 28351.6818901454. The cubic root of 803817866 is about 929.7921707714.

The spelling of 803817866 in words is "eight hundred three million, eight hundred seventeen thousand, eight hundred sixty-six".