805656499 has 2 divisors, whose sum is σ = 805656500. Its totient is φ = 805656498.

The previous prime is 805656473. The next prime is 805656517. The reversal of 805656499 is 994656508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 805656499 - 2²⁷ = 671438771 is a prime.

It is not a weakly prime, because it can be changed into another prime (805656409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402828249 + 402828250.

It is an arithmetic number, because the mean of its divisors is an integer number (402828250).

Almost surely, 2^805656499 is an apocalyptic number.

805656499 is a deficient number, since it is larger than the sum of its proper divisors (1).

805656499 is an equidigital number, since it uses as much as digits as its factorization.

805656499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 52.

The square root of 805656499 is about 28384.0888351203. The cubic root of 805656499 is about 930.5005587601.

The spelling of 805656499 in words is "eight hundred five million, six hundred fifty-six thousand, four hundred ninety-nine".