248820729 has 8 divisors (see below), whose sum is σ = 331834272. Its totient is φ = 165843840.

The previous prime is 248820709. The next prime is 248820779. The reversal of 248820729 is 927028842.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 248820729 - 2¹³ = 248812537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (248820709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19402 + ... + 29564.

It is an arithmetic number, because the mean of its divisors is an integer number (41479284).

Almost surely, 2^248820729 is an apocalyptic number.

It is an amenable number.

248820729 is a deficient number, since it is larger than the sum of its proper divisors (83013543).

248820729 is a wasteful number, since it uses less digits than its factorization.

248820729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18327.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 248820729 is about 15774.0523962614. The cubic root of 248820729 is about 628.9684378180.

The spelling of 248820729 in words is "two hundred forty-eight million, eight hundred twenty thousand, seven hundred twenty-nine".