489163723 has 2 divisors, whose sum is σ = 489163724. Its totient is φ = 489163722.

The previous prime is 489163687. The next prime is 489163771. The reversal of 489163723 is 327361984.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489163723 is a prime.

It is a super-2 number, since 2×489163723² = 478562295798441458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 489163723.

It is not a weakly prime, because it can be changed into another prime (489163523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244581861 + 244581862.

It is an arithmetic number, because the mean of its divisors is an integer number (244581862).

Almost surely, 2^489163723 is an apocalyptic number.

489163723 is a deficient number, since it is larger than the sum of its proper divisors (1).

489163723 is an equidigital number, since it uses as much as digits as its factorization.

489163723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 489163723 is about 22117.0459826804. The cubic root of 489163723 is about 787.9247584415.

The spelling of 489163723 in words is "four hundred eighty-nine million, one hundred sixty-three thousand, seven hundred twenty-three".