838383853 has 2 divisors, whose sum is σ = 838383854. Its totient is φ = 838383852.

The previous prime is 838383803. The next prime is 838383859. The reversal of 838383853 is 358383838.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 738643684 + 99740169 = 27178^2 + 9987^2 .

It is a cyclic number.

It is not a de Polignac number, because 838383853 - 2¹⁷ = 838252781 is a prime.

It is a super-2 number, since 2×838383853² = 1405774969942251218, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 838383797 and 838383806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838383859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419191926 + 419191927.

It is an arithmetic number, because the mean of its divisors is an integer number (419191927).

Almost surely, 2^838383853 is an apocalyptic number.

It is an amenable number.

838383853 is a deficient number, since it is larger than the sum of its proper divisors (1).

838383853 is an equidigital number, since it uses as much as digits as its factorization.

838383853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 49.

The square root of 838383853 is about 28954.8588841320. The cubic root of 838383853 is about 942.9332895550.

The spelling of 838383853 in words is "eight hundred thirty-eight million, three hundred eighty-three thousand, eight hundred fifty-three".