248723663 has 4 divisors (see below), whose sum is σ = 248918808. Its totient is φ = 248528520.

The previous prime is 248723641. The next prime is 248723669. The reversal of 248723663 is 366327842.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 248723663 - 2⁶ = 248723599 is a prime.

It is a super-2 number, since 2×248723663² = 123726921072275138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 248723663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248723669) 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 3 ways as a sum of consecutive naturals, for example, 95648 + ... + 98213.

It is an arithmetic number, because the mean of its divisors is an integer number (62229702).

Almost surely, 2^248723663 is an apocalyptic number.

248723663 is a deficient number, since it is larger than the sum of its proper divisors (195145).

248723663 is a wasteful number, since it uses less digits than its factorization.

248723663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195144.

The product of its digits is 290304, while the sum is 41.

The square root of 248723663 is about 15770.9753344554. The cubic root of 248723663 is about 628.8866394470.

The spelling of 248723663 in words is "two hundred forty-eight million, seven hundred twenty-three thousand, six hundred sixty-three".