805822913 has 8 divisors (see below), whose sum is σ = 952697280. Its totient is φ = 666887760.

The previous prime is 805822891. The next prime is 805822951. The reversal of 805822913 is 319228508.

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

It is not a de Polignac number, because 805822913 - 2¹² = 805818817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805822013) 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, 1984583 + ... + 1984988.

It is an arithmetic number, because the mean of its divisors is an integer number (119087160).

Almost surely, 2^805822913 is an apocalyptic number.

It is an amenable number.

805822913 is a deficient number, since it is larger than the sum of its proper divisors (146874367).

805822913 is a wasteful number, since it uses less digits than its factorization.

805822913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969607.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 805822913 is about 28387.0201500615. The cubic root of 805822913 is about 930.5646214881.

The spelling of 805822913 in words is "eight hundred five million, eight hundred twenty-two thousand, nine hundred thirteen".