289327748 has 6 divisors (see below), whose sum is σ = 506323566. Its totient is φ = 144663872.

The previous prime is 289327739. The next prime is 289327781. The reversal of 289327748 is 847723982.

It can be written as a sum of positive squares in only one way, i.e., 223263364 + 66064384 = 14942^2 + 8128^2 .

It is a junction number, because it is equal to n+sod(n) for n = 289327696 and 289327705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36165965 + ... + 36165972.

It is an arithmetic number, because the mean of its divisors is an integer number (84387261).

Almost surely, 2^289327748 is an apocalyptic number.

It is an amenable number.

289327748 is a deficient number, since it is larger than the sum of its proper divisors (216995818).

289327748 is a wasteful number, since it uses less digits than its factorization.

289327748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72331941 (or 72331939 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 289327748 is about 17009.6369155841. The cubic root of 289327748 is about 661.3987384864.

The spelling of 289327748 in words is "two hundred eighty-nine million, three hundred twenty-seven thousand, seven hundred forty-eight".