489602831 has 2 divisors, whose sum is σ = 489602832. Its totient is φ = 489602830.

The previous prime is 489602801. The next prime is 489602843. The reversal of 489602831 is 138206984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489602831 - 2⁶ = 489602767 is a prime.

It is a super-2 number, since 2×489602831² = 479421864246429122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489602801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244801415 + 244801416.

It is an arithmetic number, because the mean of its divisors is an integer number (244801416).

Almost surely, 2^489602831 is an apocalyptic number.

489602831 is a deficient number, since it is larger than the sum of its proper divisors (1).

489602831 is an equidigital number, since it uses as much as digits as its factorization.

489602831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 489602831 is about 22126.9706692986. The cubic root of 489602831 is about 788.1604536178.

The spelling of 489602831 in words is "four hundred eighty-nine million, six hundred two thousand, eight hundred thirty-one".