248857347 has 8 divisors (see below), whose sum is σ = 336010240. Its totient is φ = 163804680.

The previous prime is 248857337. The next prime is 248857361. The reversal of 248857347 is 743758842.

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

It is not a de Polignac number, because 248857347 - 2¹² = 248853251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 248857296 and 248857305.

It is not an unprimeable number, because it can be changed into a prime (248857327) 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, 524779 + ... + 525252.

It is an arithmetic number, because the mean of its divisors is an integer number (42001280).

Almost surely, 2^248857347 is an apocalyptic number.

248857347 is a deficient number, since it is larger than the sum of its proper divisors (87152893).

248857347 is a wasteful number, since it uses less digits than its factorization.

248857347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050113.

The product of its digits is 1505280, while the sum is 48.

The square root of 248857347 is about 15775.2130571983. The cubic root of 248857347 is about 628.9992906019. Note that the first 3 decimals are identical.

The spelling of 248857347 in words is "two hundred forty-eight million, eight hundred fifty-seven thousand, three hundred forty-seven".