489476831 has 2 divisors, whose sum is σ = 489476832. Its totient is φ = 489476830.

The previous prime is 489476791. The next prime is 489476849. The reversal of 489476831 is 138674984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489476831 - 2¹⁰ = 489475807 is a prime.

It is a super-2 number, since 2×489476831² = 479175136171605122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 489476831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489476881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244738415 + 244738416.

It is an arithmetic number, because the mean of its divisors is an integer number (244738416).

Almost surely, 2^489476831 is an apocalyptic number.

489476831 is a deficient number, since it is larger than the sum of its proper divisors (1).

489476831 is an equidigital number, since it uses as much as digits as its factorization.

489476831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 50.

The square root of 489476831 is about 22124.1232820648. The cubic root of 489476831 is about 788.0928364044.

The spelling of 489476831 in words is "four hundred eighty-nine million, four hundred seventy-six thousand, eight hundred thirty-one".