805448393 has 2 divisors, whose sum is σ = 805448394. Its totient is φ = 805448392.

The previous prime is 805448387. The next prime is 805448411. The reversal of 805448393 is 393844508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 699708304 + 105740089 = 26452^2 + 10283^2 .

It is a cyclic number.

It is not a de Polignac number, because 805448393 - 2⁴ = 805448377 is a prime.

It is a super-2 number, since 2×805448393² = 1297494227572564898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (805448993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402724196 + 402724197.

It is an arithmetic number, because the mean of its divisors is an integer number (402724197).

Almost surely, 2^805448393 is an apocalyptic number.

It is an amenable number.

805448393 is a deficient number, since it is larger than the sum of its proper divisors (1).

805448393 is an equidigital number, since it uses as much as digits as its factorization.

805448393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 805448393 is about 28380.4227065067. The cubic root of 805448393 is about 930.4204338661.

The spelling of 805448393 in words is "eight hundred five million, four hundred forty-eight thousand, three hundred ninety-three".