4989541 has 2 divisors, whose sum is σ = 4989542. Its totient is φ = 4989540.

The previous prime is 4989511. The next prime is 4989581. The reversal of 4989541 is 1459894.

It is an a-pointer prime, because the next prime (4989581) can be obtained adding 4989541 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4972900 + 16641 = 2230^2 + 129^2 .

It is a cyclic number.

It is not a de Polignac number, because 4989541 - 2⁹ = 4989029 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4989494 and 4989503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4989511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2494770 + 2494771.

It is an arithmetic number, because the mean of its divisors is an integer number (2494771).

Almost surely, 2^4989541 is an apocalyptic number.

It is an amenable number.

4989541 is a deficient number, since it is larger than the sum of its proper divisors (1).

4989541 is an equidigital number, since it uses as much as digits as its factorization.

4989541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 40.

The square root of 4989541 is about 2233.7280496963. The cubic root of 4989541 is about 170.8782805123.

The spelling of 4989541 in words is "four million, nine hundred eighty-nine thousand, five hundred forty-one".