1072816805 has 8 divisors (see below), whose sum is σ = 1288597632. Its totient is φ = 857441808.

The previous prime is 1072816793. The next prime is 1072816819. The reversal of 1072816805 is 5086182701.

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

It is a cyclic number.

It is not a de Polignac number, because 1072816805 - 2¹⁶ = 1072751269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95609 + ... + 106238.

It is an arithmetic number, because the mean of its divisors is an integer number (161074704).

Almost surely, 2^1072816805 is an apocalyptic number.

It is an amenable number.

1072816805 is a deficient number, since it is larger than the sum of its proper divisors (215780827).

1072816805 is a wasteful number, since it uses less digits than its factorization.

1072816805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202915.

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 1072816805 is about 32753.8822889745. The cubic root of 1072816805 is about 1023.7058598966.

The spelling of 1072816805 in words is "one billion, seventy-two million, eight hundred sixteen thousand, eight hundred five".