4949389 has 2 divisors, whose sum is σ = 4949390. Its totient is φ = 4949388.

The previous prime is 4949369. The next prime is 4949407. The reversal of 4949389 is 9839494.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4235364 + 714025 = 2058^2 + 845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4949389 is a prime.

It is a Chen prime.

4949389 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4949359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2474694 + 2474695.

It is an arithmetic number, because the mean of its divisors is an integer number (2474695).

Almost surely, 2^4949389 is an apocalyptic number.

It is an amenable number.

4949389 is a deficient number, since it is larger than the sum of its proper divisors (1).

4949389 is an equidigital number, since it uses as much as digits as its factorization.

4949389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 46.

The square root of 4949389 is about 2224.7222298525. The cubic root of 4949389 is about 170.4186796695.

The spelling of 4949389 in words is "four million, nine hundred forty-nine thousand, three hundred eighty-nine".