1994034853 has 2 divisors, whose sum is σ = 1994034854. Its totient is φ = 1994034852.

The previous prime is 1994034851. The next prime is 1994034881. The reversal of 1994034853 is 3584304991.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1203187969 + 790846884 = 34687^2 + 28122^2 .

It is a cyclic number.

It is not a de Polignac number, because 1994034853 - 2¹ = 1994034851 is a prime.

Together with 1994034851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1994034851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997017426 + 997017427.

It is an arithmetic number, because the mean of its divisors is an integer number (997017427).

Almost surely, 2^1994034853 is an apocalyptic number.

It is an amenable number.

1994034853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1994034853 is an equidigital number, since it uses as much as digits as its factorization.

1994034853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 1994034853 is about 44654.6173760340. The cubic root of 1994034853 is about 1258.6672001226.

The spelling of 1994034853 in words is "one billion, nine hundred ninety-four million, thirty-four thousand, eight hundred fifty-three".