4990243 has 2 divisors, whose sum is σ = 4990244. Its totient is φ = 4990242.

The previous prime is 4990229. The next prime is 4990259. The reversal of 4990243 is 3420994.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4990243 - 2¹³ = 4982051 is a prime.

It is a d-powerful number, because it can be written as 4⁶ + 9 + 9⁴ + 0 + 2¹⁷ + 4⁸ + 3¹⁴ .

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (4990213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495121 + 2495122.

It is an arithmetic number, because the mean of its divisors is an integer number (2495122).

Almost surely, 2^4990243 is an apocalyptic number.

4990243 is a deficient number, since it is larger than the sum of its proper divisors (1).

4990243 is an equidigital number, since it uses as much as digits as its factorization.

4990243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 4990243 is about 2233.8851805767. The cubic root of 4990243 is about 170.8862940035.

The spelling of 4990243 in words is "four million, nine hundred ninety thousand, two hundred forty-three".