1995928213 has 2 divisors, whose sum is σ = 1995928214. Its totient is φ = 1995928212.

The previous prime is 1995928199. The next prime is 1995928217. The reversal of 1995928213 is 3128295991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1061586724 + 934341489 = 32582^2 + 30567^2 .

It is an emirp because it is prime and its reverse (3128295991) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1995928213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1995928217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 997964106 + 997964107.

It is an arithmetic number, because the mean of its divisors is an integer number (997964107).

Almost surely, 2^1995928213 is an apocalyptic number.

It is an amenable number.

1995928213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1995928213 is an equidigital number, since it uses as much as digits as its factorization.

1995928213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 49.

The square root of 1995928213 is about 44675.8123932850. The cubic root of 1995928213 is about 1259.0654473013.

The spelling of 1995928213 in words is "one billion, nine hundred ninety-five million, nine hundred twenty-eight thousand, two hundred thirteen".