3993854653 has 2 divisors, whose sum is σ = 3993854654. Its totient is φ = 3993854652.

The previous prime is 3993854639. The next prime is 3993854681. The reversal of 3993854653 is 3564583993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2582875684 + 1410978969 = 50822^2 + 37563^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3993854653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3993854594 and 3993854603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3993854633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996927326 + 1996927327.

It is an arithmetic number, because the mean of its divisors is an integer number (1996927327).

Almost surely, 2^3993854653 is an apocalyptic number.

It is an amenable number.

3993854653 is a deficient number, since it is larger than the sum of its proper divisors (1).

3993854653 is an equidigital number, since it uses as much as digits as its factorization.

3993854653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10497600, while the sum is 55.

The square root of 3993854653 is about 63196.9512951376. The cubic root of 3993854653 is about 1586.5877077780.

The spelling of 3993854653 in words is "three billion, nine hundred ninety-three million, eight hundred fifty-four thousand, six hundred fifty-three".