248945447 has 8 divisors (see below), whose sum is σ = 255040896. Its totient is φ = 242863992.

The previous prime is 248945413. The next prime is 248945461. The reversal of 248945447 is 744549842.

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 248945447 - 2²⁰ = 247896871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248945647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38588 + ... + 44574.

It is an arithmetic number, because the mean of its divisors is an integer number (31880112).

Almost surely, 2^248945447 is an apocalyptic number.

248945447 is a deficient number, since it is larger than the sum of its proper divisors (6095449).

248945447 is an equidigital number, since it uses as much as digits as its factorization.

248945447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6997.

The product of its digits is 1290240, while the sum is 47.

The square root of 248945447 is about 15778.0051654194. The cubic root of 248945447 is about 629.0735075514.

The spelling of 248945447 in words is "two hundred forty-eight million, nine hundred forty-five thousand, four hundred forty-seven".