248305723 has 12 divisors (see below), whose sum is σ = 274849848. Its totient is φ = 223530560.

The previous prime is 248305711. The next prime is 248305763. The reversal of 248305723 is 327503842.

It is a de Polignac number, because none of the positive numbers 2^k-248305723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248305763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4813 + ... + 22798.

It is an arithmetic number, because the mean of its divisors is an integer number (22904154).

Almost surely, 2^248305723 is an apocalyptic number.

248305723 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

248305723 is a deficient number, since it is larger than the sum of its proper divisors (26544125).

248305723 is a wasteful number, since it uses less digits than its factorization.

248305723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27674 (or 27651 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 248305723 is about 15757.7194733248. The cubic root of 248305723 is about 628.5341944419.

The spelling of 248305723 in words is "two hundred forty-eight million, three hundred five thousand, seven hundred twenty-three".