3993313 has 2 divisors, whose sum is σ = 3993314. Its totient is φ = 3993312.

The previous prime is 3993263. The next prime is 3993323. The reversal of 3993313 is 3133993.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3017169 + 976144 = 1737^2 + 988^2 .

It is a cyclic number.

It is not a de Polignac number, because 3993313 - 2²¹ = 1896161 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3993323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996656 + 1996657.

It is an arithmetic number, because the mean of its divisors is an integer number (1996657).

Almost surely, 2^3993313 is an apocalyptic number.

It is an amenable number.

3993313 is a deficient number, since it is larger than the sum of its proper divisors (1).

3993313 is an equidigital number, since it uses as much as digits as its factorization.

3993313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6561, while the sum is 31.

The square root of 3993313 is about 1998.3275507284. The cubic root of 3993313 is about 158.6515979342.

The spelling of 3993313 in words is "three million, nine hundred ninety-three thousand, three hundred thirteen".