3213199993 has 2 divisors, whose sum is σ = 3213199994. Its totient is φ = 3213199992.

The previous prime is 3213199987. The next prime is 3213200009. The reversal of 3213199993 is 3999913123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3052341504 + 160858489 = 55248^2 + 12683^2 .

It is an emirp because it is prime and its reverse (3999913123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3213199993 - 2⁹ = 3213199481 is a prime.

It is not a weakly prime, because it can be changed into another prime (3213199933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606599996 + 1606599997.

It is an arithmetic number, because the mean of its divisors is an integer number (1606599997).

Almost surely, 2^3213199993 is an apocalyptic number.

It is an amenable number.

3213199993 is a deficient number, since it is larger than the sum of its proper divisors (1).

3213199993 is an equidigital number, since it uses as much as digits as its factorization.

3213199993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 354294, while the sum is 49.

The square root of 3213199993 is about 56685.0949809560. The cubic root of 3213199993 is about 1475.6360360272.

The spelling of 3213199993 in words is "three billion, two hundred thirteen million, one hundred ninety-nine thousand, nine hundred ninety-three".