489212651 has 2 divisors, whose sum is σ = 489212652. Its totient is φ = 489212650.

The previous prime is 489212623. The next prime is 489212683. The reversal of 489212651 is 156212984.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489212651 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (489212351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244606325 + 244606326.

It is an arithmetic number, because the mean of its divisors is an integer number (244606326).

Almost surely, 2^489212651 is an apocalyptic number.

489212651 is a deficient number, since it is larger than the sum of its proper divisors (1).

489212651 is an equidigital number, since it uses as much as digits as its factorization.

489212651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 489212651 is about 22118.1520701889. The cubic root of 489212651 is about 787.9510279674.

The spelling of 489212651 in words is "four hundred eighty-nine million, two hundred twelve thousand, six hundred fifty-one".