248742923 has 8 divisors (see below), whose sum is σ = 292229616. Its totient is φ = 208735200.

The previous prime is 248742919. The next prime is 248742943. The reversal of 248742923 is 329247842.

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 248742923 - 2² = 248742919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248742913) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 869588 + ... + 869873.

It is an arithmetic number, because the mean of its divisors is an integer number (36528702).

Almost surely, 2^248742923 is an apocalyptic number.

248742923 is a deficient number, since it is larger than the sum of its proper divisors (43486693).

248742923 is a wasteful number, since it uses less digits than its factorization.

248742923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739485.

The product of its digits is 193536, while the sum is 41.

The square root of 248742923 is about 15771.5859380089. The cubic root of 248742923 is about 628.9028717104.

The spelling of 248742923 in words is "two hundred forty-eight million, seven hundred forty-two thousand, nine hundred twenty-three".