489473623 has 2 divisors, whose sum is σ = 489473624. Its totient is φ = 489473622.

The previous prime is 489473587. The next prime is 489473657. The reversal of 489473623 is 326374984.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489473623 is a prime.

It is a super-2 number, since 2×489473623² = 479168855225492258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489473693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244736811 + 244736812.

It is an arithmetic number, because the mean of its divisors is an integer number (244736812).

Almost surely, 2^489473623 is an apocalyptic number.

489473623 is a deficient number, since it is larger than the sum of its proper divisors (1).

489473623 is an equidigital number, since it uses as much as digits as its factorization.

489473623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 46.

The square root of 489473623 is about 22124.0507818980. The cubic root of 489473623 is about 788.0911146972.

The spelling of 489473623 in words is "four hundred eighty-nine million, four hundred seventy-three thousand, six hundred twenty-three".