248910643 has 4 divisors (see below), whose sum is σ = 249796728. Its totient is φ = 248024560.

The previous prime is 248910587. The next prime is 248910677. The reversal of 248910643 is 346019842.

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 248910643 - 2⁹ = 248910131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248910743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442621 + ... + 443182.

It is an arithmetic number, because the mean of its divisors is an integer number (62449182).

Almost surely, 2^248910643 is an apocalyptic number.

248910643 is a deficient number, since it is larger than the sum of its proper divisors (886085).

248910643 is an equidigital number, since it uses as much as digits as its factorization.

248910643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886084.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 248910643 is about 15776.9021991011. The cubic root of 248910643 is about 629.0441901581.

The spelling of 248910643 in words is "two hundred forty-eight million, nine hundred ten thousand, six hundred forty-three".