943950013 has 2 divisors, whose sum is σ = 943950014. Its totient is φ = 943950012.

The previous prime is 943949987. The next prime is 943950019. The reversal of 943950013 is 310059349.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 804403044 + 139546969 = 28362^2 + 11813^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-943950013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (943950019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471975006 + 471975007.

It is an arithmetic number, because the mean of its divisors is an integer number (471975007).

Almost surely, 2^943950013 is an apocalyptic number.

It is an amenable number.

943950013 is a deficient number, since it is larger than the sum of its proper divisors (1).

943950013 is an equidigital number, since it uses as much as digits as its factorization.

943950013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 943950013 is about 30723.7695115687. The cubic root of 943950013 is about 980.9563110526.

The spelling of 943950013 in words is "nine hundred forty-three million, nine hundred fifty thousand, thirteen".