489623623 has 2 divisors, whose sum is σ = 489623624. Its totient is φ = 489623622.

The previous prime is 489623573. The next prime is 489623633. The reversal of 489623623 is 326326984.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 489623623 - 2²⁵ = 456069191 is a prime.

It is a super-2 number, since 2×489623623² = 479462584399292258, which contains 22 as substring.

It is equal to p_25837459 and since 489623623 and 25837459 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 489623623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (489623633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 244811811 + 244811812.

It is an arithmetic number, because the mean of its divisors is an integer number (244811812).

Almost surely, 2^489623623 is an apocalyptic number.

489623623 is a deficient number, since it is larger than the sum of its proper divisors (1).

489623623 is an equidigital number, since it uses as much as digits as its factorization.

489623623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 43.

The square root of 489623623 is about 22127.4404981688. The cubic root of 489623623 is about 788.1716104162.

The spelling of 489623623 in words is "four hundred eighty-nine million, six hundred twenty-three thousand, six hundred twenty-three".