4993913 has 2 divisors, whose sum is σ = 4993914. Its totient is φ = 4993912.

The previous prime is 4993909. The next prime is 4993931. The reversal of 4993913 is 3193994.

Together with next prime (4993931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4963984 + 29929 = 2228^2 + 173^2 .

It is a cyclic number.

It is not a de Polignac number, because 4993913 - 2² = 4993909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4993943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2496956 + 2496957.

It is an arithmetic number, because the mean of its divisors is an integer number (2496957).

Almost surely, 2^4993913 is an apocalyptic number.

It is an amenable number.

4993913 is a deficient number, since it is larger than the sum of its proper divisors (1).

4993913 is an equidigital number, since it uses as much as digits as its factorization.

4993913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26244, while the sum is 38.

The square root of 4993913 is about 2234.7064684204. The cubic root of 4993913 is about 170.9281756659.

The spelling of 4993913 in words is "four million, nine hundred ninety-three thousand, nine hundred thirteen".