4991333 has 2 divisors, whose sum is σ = 4991334. Its totient is φ = 4991332.

The previous prime is 4991317. The next prime is 4991339. The reversal of 4991333 is 3331994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4739329 + 252004 = 2177^2 + 502^2 .

It is a cyclic number.

It is not a de Polignac number, because 4991333 - 2⁴ = 4991317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4991333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4991339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495666 + 2495667.

It is an arithmetic number, because the mean of its divisors is an integer number (2495667).

Almost surely, 2^4991333 is an apocalyptic number.

It is an amenable number.

4991333 is a deficient number, since it is larger than the sum of its proper divisors (1).

4991333 is an equidigital number, since it uses as much as digits as its factorization.

4991333 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 32.

The square root of 4991333 is about 2234.1291368227. The cubic root of 4991333 is about 170.8987351144.

The spelling of 4991333 in words is "four million, nine hundred ninety-one thousand, three hundred thirty-three".