489850841 has 2 divisors, whose sum is σ = 489850842. Its totient is φ = 489850840.

The previous prime is 489850771. The next prime is 489850843. The reversal of 489850841 is 148058984.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 367527241 + 122323600 = 19171^2 + 11060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489850841 is a prime.

Together with 489850843, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_25848866 and since 489850841 and 25848866 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (489850843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244925420 + 244925421.

It is an arithmetic number, because the mean of its divisors is an integer number (244925421).

Almost surely, 2^489850841 is an apocalyptic number.

It is an amenable number.

489850841 is a deficient number, since it is larger than the sum of its proper divisors (1).

489850841 is an equidigital number, since it uses as much as digits as its factorization.

489850841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 489850841 is about 22132.5742063593. The cubic root of 489850841 is about 788.2935129504.

The spelling of 489850841 in words is "four hundred eighty-nine million, eight hundred fifty thousand, eight hundred forty-one".