385890853 has 2 divisors, whose sum is σ = 385890854. Its totient is φ = 385890852.

The previous prime is 385890833. The next prime is 385890881. The reversal of 385890853 is 358098583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237221604 + 148669249 = 15402^2 + 12193^2 .

It is a cyclic number.

It is not a de Polignac number, because 385890853 - 2⁹ = 385890341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 385890797 and 385890806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385890823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192945426 + 192945427.

It is an arithmetic number, because the mean of its divisors is an integer number (192945427).

Almost surely, 2^385890853 is an apocalyptic number.

It is an amenable number.

385890853 is a deficient number, since it is larger than the sum of its proper divisors (1).

385890853 is an equidigital number, since it uses as much as digits as its factorization.

385890853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 385890853 is about 19644.1047899872. The cubic root of 385890853 is about 728.0393078693.

The spelling of 385890853 in words is "three hundred eighty-five million, eight hundred ninety thousand, eight hundred fifty-three".