489506751 has 6 divisors (see below), whose sum is σ = 707065320. Its totient is φ = 326337828.

The previous prime is 489506741. The next prime is 489506753. The reversal of 489506751 is 157605984.

It is not a de Polignac number, because 489506751 - 2⁹ = 489506239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 489506697 and 489506706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489506753) 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 in 5 ways as a sum of consecutive naturals, for example, 27194811 + ... + 27194828.

It is an arithmetic number, because the mean of its divisors is an integer number (117844220).

Almost surely, 2^489506751 is an apocalyptic number.

489506751 is a deficient number, since it is larger than the sum of its proper divisors (217558569).

489506751 is a wasteful number, since it uses less digits than its factorization.

489506751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54389645 (or 54389642 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 489506751 is about 22124.7994567182. The cubic root of 489506751 is about 788.1088938598.

The spelling of 489506751 in words is "four hundred eighty-nine million, five hundred six thousand, seven hundred fifty-one".