489724951 has 8 divisors (see below), whose sum is σ = 502239024. Its totient is φ = 477238080.

The previous prime is 489724931. The next prime is 489724969. The reversal of 489724951 is 159427984.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 489724951 - 2⁹ = 489724439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 489724895 and 489724904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489724931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32521 + ... + 45133.

It is an arithmetic number, because the mean of its divisors is an integer number (62779878).

Almost surely, 2^489724951 is an apocalyptic number.

489724951 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

489724951 is a deficient number, since it is larger than the sum of its proper divisors (12514073).

489724951 is a wasteful number, since it uses less digits than its factorization.

489724951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13601.

The product of its digits is 725760, while the sum is 49.

The square root of 489724951 is about 22129.7300254657. The cubic root of 489724951 is about 788.2259775808.

The spelling of 489724951 in words is "four hundred eighty-nine million, seven hundred twenty-four thousand, nine hundred fifty-one".