805263213 has 8 divisors (see below), whose sum is σ = 1110708000. Its totient is φ = 518330288.

The previous prime is 805263163. The next prime is 805263233. The reversal of 805263213 is 312362508.

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 805263213 - 2⁸ = 805262957 is a prime.

It is a super-2 number, since 2×805263213² = 1296897684422166738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805263233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4627863 + ... + 4628036.

It is an arithmetic number, because the mean of its divisors is an integer number (138838500).

Almost surely, 2^805263213 is an apocalyptic number.

It is an amenable number.

805263213 is a deficient number, since it is larger than the sum of its proper divisors (305444787).

805263213 is a wasteful number, since it uses less digits than its factorization.

805263213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9255931.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 805263213 is about 28377.1600587515. The cubic root of 805263213 is about 930.3491243267.

The spelling of 805263213 in words is "eight hundred five million, two hundred sixty-three thousand, two hundred thirteen".