248487247 has 4 divisors (see below), whose sum is σ = 248519016. Its totient is φ = 248455480.

The previous prime is 248487241. The next prime is 248487271. The reversal of 248487247 is 742784842.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 248487247 - 2¹⁹ = 247962959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248487197 and 248487206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248487241) 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 3 ways as a sum of consecutive naturals, for example, 5013 + ... + 22849.

It is an arithmetic number, because the mean of its divisors is an integer number (62129754).

Almost surely, 2^248487247 is an apocalyptic number.

248487247 is a deficient number, since it is larger than the sum of its proper divisors (31769).

248487247 is a wasteful number, since it uses less digits than its factorization.

248487247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31768.

The product of its digits is 802816, while the sum is 46.

The square root of 248487247 is about 15763.4782646471. The cubic root of 248487247 is about 628.6873205267.

The spelling of 248487247 in words is "two hundred forty-eight million, four hundred eighty-seven thousand, two hundred forty-seven".