3993785923 has 2 divisors, whose sum is σ = 3993785924. Its totient is φ = 3993785922.

The previous prime is 3993785909. The next prime is 3993785927. The reversal of 3993785923 is 3295873993.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3993785923 - 2¹³ = 3993777731 is a prime.

It is not a weakly prime, because it can be changed into another prime (3993785927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996892961 + 1996892962.

It is an arithmetic number, because the mean of its divisors is an integer number (1996892962).

Almost surely, 2^3993785923 is an apocalyptic number.

3993785923 is a deficient number, since it is larger than the sum of its proper divisors (1).

3993785923 is an equidigital number, since it uses as much as digits as its factorization.

3993785923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11022480, while the sum is 58.

The square root of 3993785923 is about 63196.4075165670. The cubic root of 3993785923 is about 1586.5786065622.

The spelling of 3993785923 in words is "three billion, nine hundred ninety-three million, seven hundred eighty-five thousand, nine hundred twenty-three".