809216038 has 8 divisors (see below), whose sum is σ = 1266599088. Its totient is φ = 387016344.

The previous prime is 809215993. The next prime is 809216077. The reversal of 809216038 is 830612908.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 809215988 and 809216006.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8795781 + ... + 8795872.

It is an arithmetic number, because the mean of its divisors is an integer number (158324886).

Almost surely, 2^809216038 is an apocalyptic number.

809216038 is a deficient number, since it is larger than the sum of its proper divisors (457383050).

809216038 is a wasteful number, since it uses less digits than its factorization.

809216038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17591678.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 809216038 is about 28446.7227989447. The cubic root of 809216038 is about 931.8689198707.

The spelling of 809216038 in words is "eight hundred nine million, two hundred sixteen thousand, thirty-eight".