385786799 has 2 divisors, whose sum is σ = 385786800. Its totient is φ = 385786798.

The previous prime is 385786717. The next prime is 385786801. The reversal of 385786799 is 997687583.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385786799 is a prime.

Together with 385786801, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385786399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192893399 + 192893400.

It is an arithmetic number, because the mean of its divisors is an integer number (192893400).

Almost surely, 2^385786799 is an apocalyptic number.

385786799 is a deficient number, since it is larger than the sum of its proper divisors (1).

385786799 is an equidigital number, since it uses as much as digits as its factorization.

385786799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22861440, while the sum is 62.

The square root of 385786799 is about 19641.4561323747. The cubic root of 385786799 is about 727.9738643105.

The spelling of 385786799 in words is "three hundred eighty-five million, seven hundred eighty-six thousand, seven hundred ninety-nine".